工学修士, 電気通信大学

工学博士, 東京大学

Jan. 1983
The University of Tokyo

Mar. 1975
The University of Electro-Communications, Graduate School, Division of Electro Communications, 機械工学専攻

Mar. 1972
The University of Electro-Communications, Faculty of Electro Communications, 機械工学科

Nov. 2007
ロールフォーミング分科会 主査, 日本塑性加工学会, Society

2005 - 2005
P&M第一委員会委員長, 日本機械学会, Society

2004
企画委員会 委員長, 日本塑性加工学会, Society

2001
研究委員会 理事, 軽金属学会, Society

1995 - 1999
理事, 日本塑性加工学会, Society

1999
企画委員, 軽金属学会, Society

1998
専門調査委員, 文部科学省 科学技術政策研究所, Society

1995
評議委員, 日本塑性加工学会, Society

May 1995
日本塑性加工学会論文賞

May 1992
日本塑性加工学会技術開発賞

内面に多数のねじられた突起を持つ円管の押出し加工
村田眞; 久保木孝; 小林雅志; 山崎弘之(LIXIL
日本塑性加工学会 学会誌「塑性と加工」, The Japan Society for Technology of Plasticity, 53, 622, 48-52, Nov. 2012, Peer-reviwed, Circular tube of copper with spiral projections on the inside wall is used for the improvement of the heat exchange efficiency of the heat exchanger. The copper tube is made by swaging. The copper price is expensive and the swaging manufacture speed is late. If the tube is conventionally manufactured by extrusion and made of aluminum, not only the price of tube becomes cheap but also manufacture speed gets faster. And the projection of spiral shape for heat effective exchanger can be made. We modified the traditional extrusion machine and successfully extruded the trial extruded circular tube with many spiral projections on the inside wall. The billet material is lead. We discussed experimentally the influence of shape and the size on the trial extruded circular tube about processing conditions. The established number of projection is 20 and lead angle is 30 degree with the spiral projection on the inside wall of the circular tube. It was possible to extrude established circular tubes with many spiral projections on the inside wall under appropriated processing conditions.
Scientific journal, Japanese

Lubrication Characteristics of Deep Drawing with High-presured water Jet
Takashi Kuboki; Hiroshi Saito; Yuta Tanaka; Mokoto Murata; Kazumi Matsui; Makoto Tsubokura
Proc. of Metal Forming, 355, Sep. 2012
International conference proceedings, English

Influence of Billet Material of Extruded Circular Tube with Spiral Projections on Inside Wall
Mokoto Murata; takashi Kubokim; Masashi Kobayashi; Hiroyuki Yamazaki
Proc. of 14th International Conferecne, 463-466, Sep. 2012
International conference proceedings, English

Prediction of stress-strain diagram from forming load in stretch forming
Takashi Kuboki; Yingjun Jin; Makoto Murata
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, PERGAMON-ELSEVIER SCIENCE LTD, 60, 1, 46-53, Jul. 2012, Peer-reviwed, The objective of this research is to propose a prediction method of a stress-strain diagram based on a stroke-load diagram in stretch forming. In the proposed method, a set of characteristics in a stress-strain diagram and the same number of characteristics in a stroke-load diagram are chosen. A square matrix of influence coefficient is calculated on a master material using finite element analysis so that each element of the matrix is a partial differential of a stroke-load characteristic by a stress-strain characteristic. In the actual process of stretch forming, the differences of characteristics in a stroke-load diagram are measured between the target and master materials. Based on the differences of characteristics of stroke-load, the characteristics of a stress-strain diagram for the target material are calculated using the inverse matrix of the influence coefficient. In the present paper, the essential concept is introduced, and the error of prediction is estimated numerically, followed by experimental verification. (C) 2012 Elsevier Ltd. All rights reserved.
Scientific journal, English

A5083厚板の曲げ加工におけるスプリングバックに及ぼす曲げ型形状の影響
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩; アマダ; 金英俊; 株)アマダ
日本塑性加工学会論文誌/塑性と加工, 第53, 615, 74-78, Apr. 2012, Peer-reviwed
Scientific journal, Japanese

Effect of clearance on new shearing method with horizontal tool movement of 1100 aluminum sheet
Datao Lu; Makoto Murata; Takashi Kuboki; Yingjun Jin
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, SPRINGER LONDON LTD, 57, 5-8, 647-653, Nov. 2011, Peer-reviwed, Sheet metal cutting is a general metal forming process. A new cutting method has been invented for sheet metal by the authors. It has been named the MM-shearing method. There are several advantages in the method, for example small cutting force, beautiful cutting surface and no burrs on the cut surface. Moreover, the equipment used in the method is inexpensive. However, there are some important parameters to consider in the MM-shearing method, such as tool angle, clearance between the tool and die, sheet thickness, and cutting speed. In this paper, a series of experiments was carried out to examine the suitable clearance. The experimental material is 1100 aluminum sheet (Japanese Industrial Standard). The cutting force, ratio of sheared and fractured surfaces, inclination angle, burr height, roughness, and Vickers hardness of the cutting surface are examined corresponding to the clearance change. The principle and characteristics of the MM-shearing method are made clear in this paper in terms of the clearance between the tool and die.
Scientific journal, English

Tube Bending of New Generation by MOS Bending Machine
Makoto Murata
Proc.of 4th DORP 2011, 9-18, Nov. 2011
International conference proceedings, English

Effect of temperature in formability of composite composed of overlapped fibre bundle, thermoplastic resin and metal
T. Kuboki; S. Uematsu; M. Murata
Proc. of COMPLAS XI, 61, Sep. 2011
International conference proceedings, English

Effect of clearance on cut surface of metallic thin film
T. Kuboki; M. Matsudaira; T. Matsui; M. Murata
Proc. 10th INt. Conf. Techn. Plast, 601-606, Sep. 2011
International conference proceedings, English

Control of Bending Radius in Incremental Beinding Process of Very Thin Sheet metals
S.Hama; T.Kuboki; M.Murata
Proc.10th INt.Cnf.Techn.Plast,ICTP2011, 1132-1135, Sep. 2011, Peer-reviwed
International conference proceedings, English

工具を水平方向に移動させる新しいせん断加工と従来のせん断との加工力および切口面の比較
路大涛; 村田眞; 久保木孝; 金英俊(アマダ
軽金属学会誌「軽金属」, 61, 3, 100-106, Mar. 2011, Peer-reviwed
Scientific journal, Japanese

Effect of feeding velocity on formability in a new micro-drawing process using a pair of concave rolls
T. Kuboki; Y. Senzaki; M. Murata
Proc.of ICOMM 2011, 279-284, Mar. 2011
International conference proceedings, English

An analytical method of metal forming considering ageing in the microstructure for carbon steel
Takashi Kuboki; Makoto Murata; D. R. J. Owen
COMPUTERS & STRUCTURES, PERGAMON-ELSEVIER SCIENCE LTD, 88, 19-20, 1162-1178, Oct. 2010, Peer-reviwed, An analytical method is proposed that considers ageing, with an emphasis on cementite morphology, for metal forming simulations. The basic concept is that ageing in the microscale and the deformation and temperature rise in the macroscale should be analysed simultaneously. In the macroscale, mechanical analysis is carried out followed by thermal analysis. In the microscale, the diffusion of carbon is estimated considering the history of strain and temperature analysed by the macroscale analyses. Using the proposed method, metal forming analysis is conducted and experimental verification is conducted with emphasis on carbon content and deformation rate. (C) 2010 Elsevier Ltd. All rights reserved.
Scientific journal, English

Mechanical properties of wire drawn by a new drawing process using a pair of concave rolls
Takashi Kuboki; Kazumichi Aoki; Yasunori Senzaki; Makoto Murata
Proc. of In-Tech 2010, (2010), Pague, Czech Republic, 9, 133-136, Oct. 2010, Peer-reviwed
International conference proceedings, English

Composite structure composed of overlapped fibre bundles, thermoplastic resin and metal plate for secondary forming process
Takashi Kuboki; Shun-ichi Uematsu; Makoto Murata
COMPOSITES SCIENCE AND TECHNOLOGY, ELSEVIER SCI LTD, 70, 9, 1338-1345, Sep. 2010, Peer-reviwed, A simple shape of a composite is preferable in mass production, while a curved or stretched shape is sometimes preferable for final products. High formability would enable the composite to deform into a preferable shape by secondary forming. In this paper, a structure for a composite is proposed to enhance formability. The composite is composed of reinforcing fibre bundles, thermoplastic resin as the matrix and metal plates. The reinforcing fibre bundles are discontinuous, and are intentionally overlapped in the longitudinal direction. The resin including fibre bundles is sandwiched between the metal plates. As the thermoplastic resin is melted at an adequate temperature, heating would enhance the mobility of thermoplastic resin resulting in high formability at the secondary forming. If the overlapped length is adequately designed, the composite would still maintain high strength after the secondary formation. The validity of the concept was checked by finite element analyses and experiments. (C) 2010 Elsevier Ltd. All rights reserved.
Scientific journal, English

Effect of Tool Angle on New shearing Method of 1100 Aluminium Sheet
D.Lu; M.Murata; Takashi.Kuboki; Yingjun.Jin
Proc. ofThe 12th International Conference on Aluminum Alloys, 548-553, Sep. 2010, Peer-reviwed
International conference proceedings, English

Deformation Behavior of Joining Tube and Holed Rib by Extrusion
Tsutomu Moroi; Takashi Kuboki; Makoto Murata
Proc. of The 12th International Conference on Aluminum Alloys, 589-594, Sep. 2010, Peer-reviwed
International conference proceedings, English

Processing Limit in V-bending
Takahiro Shibata; Yingjun; Junichi Koyama; Takashi Kuboki; Makoto Murata
Proc.of The 12th International Conference on Aluminum Alloys, 613-618, Sep. 2010, Peer-reviwed
International conference proceedings, English

Deformaiton by V-bending of Thick Plate Matal 5083
Naranbaatar Khamt; Makoto Murata; Takashi Kuboki
Proc. of The 12th International Conference on Aluminum Alloys, 619-624, Sep. 2010, Peer-reviwed
International conference proceedings, English

Influence of Initial Thickness of Circular Tube in Rotary-Draw Bending Adding Axial Pushing Force for Suppression of Flatness
Kazuhito Takahashi; Takashi Kuboki; Makoto Murata; Kouzo Yano
STEEL RESEARCH INTERNATIONAL, WILEY-V C H VERLAG GMBH, 81, 9, 580-583, Sep. 2010, Peer-reviwed, The tube bending process adding the axial pushing force has been suggested by researchers and engineers for suppression of flatness that is the defective phenomenon of bent tubes. The authors have been considering in previous research works the mechanism of the suppression of flatness and confirm that the flatness was successfully suppressed by the axial pushing force with sufficient pressure die force by using steel tube. When the bending radius R-0 is larger than 2.5 times of diameter d(0), the flatness can be suppressed under 3.0%. However, the effect that the difference of the initial thickness of tube in this process method is not clarified. Therefore, in the present research, FEM and experiments were conducted by changing the initial thickness of the STK590 (JIS) tube from 2.0 to 3.2 mm for a diameter of 27.2 mm. As a result, when the axial pushing force is over 215 MPa while the initial thickness is between 2.3 and 3.2 mm, buckling occurs. When the axial pushing force is over 143 MPa while the initial thickness is 2.0 mm, wrinkle occurs and it is the limit of processing. However, when the initial thickness of circular tube is between 2.3 and 3.2 mm while the axial force is 143 MPa, the flatness could be suppressed within 4.0% for any thickness.
Scientific journal, English

FEM Analysis of Tube Straightener Adopting Implicit Scheme
Takashi Kuboki; He Huang; Makoto Murata; Yohei Yamaguchi; Kouichi Kuroda
STEEL RESEARCH INTERNATIONAL, WILEY-V C H VERLAG GMBH, 81, 9, 584-587, Sep. 2010, Peer-reviwed, Straightening is an important process, which is positioned at the very end of production lines in industry. Straightening determines the final shape in longitudinal direction and cross section as well as the distribution of residual stress. In particular, rotary straightener is an effective method with high productivity for long products of bar rods and tubes. The working conditions for the rotary straightener are usually determined based on the interpretation of technicians in practical production lines. In the present research, a complete FEM model, named "Trial 3", was built up adopting the implicit scheme for the purpose of precise estimation of tube straightening in three-stand straightener. Four types of modeling were tried overall and comparison was made. While Trial 1, 2 and 3 adopted the implicit scheme, Trial 4 adopted the explicit scheme. In Trial 3 of complete model, all the rolls are reproduced and no prescribed displacements are assigned just as actual straightening. Trial 4 of explicit scheme has the same setting to Trial 3. Trial 4 of explicit scheme showed poor results and stress and strain histories are quite different from those in the other models. Trial 1, 2 and 3 have shown similar results except a phenomenon whereby only Trial 3 shows axial shrinkage and radial expansion.
Scientific journal, English

Computational Method of Springback in V-bending of Sheet Having Bausching Effect
Kazunari Imai; Jin Yingjun; Hiroki Tsuruta; Junichi Koyama; Takashi Kuboki; Makoto Murata
STEEL RESEARCH INTERNATIONAL, WILEY-V C H VERLAG GMBH, 81, 9, 757-760, Sep. 2010, Peer-reviwed, The final bending angle by a press brake equals the sum of clamp and springback angles. Hence, the on-line measurement of the clamping angle and prediction of springback are key technologies for the precision bending. Recently, a precise angle sensor for the measurement of clamp angle has been developed, and implemented into bending machines for the on-line measurement. If the springback is known a priori, the required clamp angle can be calculated and the clamping position can be decided using a feedback control system with the precise angle sensor. As a result, a high-accuracy V-bend process becomes possible. In this research, a new computational method, based on fundamental bending theory, is proposed for the prediction of springback. However, errors will arise if the material anisotropy or the Bauschinger effect in springback are not accounted for. For the consideration of the Bauschinger effect, a new method is introduced in the fundamental analysis. First, a series of tension tests are conducted for the investigation of the Bauschinger effect for various values of pre-strain and different material types. Based on these results, a new empirical equation is proposed for the description of the Bauschinger effect. The empirical equation is combined with the fundamental bending theory to improve the calculation accuracy of the springback, followed by experimental verification. This method makes it possible to reduce the error margin of springback to less than 0.5 degree with a computing time of about one second and can also be easily implemented on the filed.
Scientific journal, English

Effect of initial thickness deviation on deformed tube shape in tube spinning
Takashi Kuboki; Naoto Takahashi; Kazuhito Takahashi; Kazuhiko Sanda; Susumu Moriya; Keisuke Ishida; Makoto Murata
Proc. of Steel Reserach Int., 81, 9, 978-981, Sep. 2010, Peer-reviwed
International conference proceedings, English

5083アルミニウム合金厚板のV曲げによる変形形状
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩; 金英俊
軽金属学会誌「軽金属」, 60, 6, 264-268, Jun. 2010, Peer-reviwed
Scientific journal, Japanese

Effect of tube wall thickness in Joining of Aluminum Tube and Holed Rib by Extrusion
T. Moroi; T. Kuboki; M. Murata
ADVANCES ON HOT EXTRUSION AND SIMULATION OF LIGHT ALLOYS, TRANS TECH PUBLICATIONS LTD, 424, 121-128, 2010, Peer-reviwed, Existence of some holes at internal ribs enhances the function and value of the tubes. A new extrusion method is proposed here for the forming of this shape by extrusion with joining. The method involves the use of a unique mandrel that has a slit along its axis and two guides at the slit exit. A holed sheet is fed through the slit and joined with the inner surface of extrude tube. Effect of two parameters, that are tube-wall thickness and guide position h which is distance from guide top to die surface were clarified by FEA. Two kinds of three-dimensional analysis models were prepared. One of the analysis models treats the rib as rigid body to examine a gap between rib and tube. Another model treats the rib as the elasto-plasticity body as well as the billet to examine the effect of the guide position and the tube wall thickness on the rib deformation. The series of analyses was carried out with emphasis on the metal flow. The gap between tube and rib is able to be suppressed small and joining condition becomes satisfactory when guide position rose or tube wall was thin. When the guide position rose further, or the tube wall thickness was excessively thinner, the amount of the deformation of the rib increases, and it causes defects.
International conference proceedings, English

板材のL曲げ加工におけるパンチの軌跡半径の影響
小山純一; 金英俊; 今井一成; 久保木孝; 村田眞
日本塑性加工学学会誌「塑性と加工, 50, 586, 57-61, Nov. 2009, Peer-reviwed
Scientific journal, Japanese

Feasibility Study By Finite Element Analysis on Free Size Drawing Using”a Pair of Concave Rolls
Takashi Kuboki; Yasunori Senzaki; Makoto Murata
Proc.of COMPLAS X, 447-450, Sep. 2009
International conference proceedings, English

Analysis of Residual Stress in Carbon Steel after Localized Heating
Takashi Ito; Makoto Murata; Takashi Kuboki; Jin Yingjun
Proc.of COMPLAS, 505-508, Sep. 2009
International conference proceedings, English

Effect of Pre-strain History on Mechanical Characteristics in Aluminium1070
Jun-ichi Oguri; Takashi Kuboki; Makoto Murata; Kenjiro Terada
Proc.of COMPLAS, 509-512, Sep. 2009, Peer-reviwed
International conference proceedings, English

Finite Element Analysis And Experimental Investigation on CircularTube-pure Bending
Kazuhito Takahashi; Takashi Kuboki; Makoto Murata
Proc.of TUBE HYDROFORMING, 188-193, Sep. 2009
International conference proceedings, English

凹型ロールを用いた伸線加工におけるクラッシュと張力が減率に及ぼす影響
久保木孝; 仙崎泰慎; 村田眞; 中村友彦
日本塑性加工学学会誌「塑性と加工」, 第50, 582, 60-64, Jul. 2009, Peer-reviwed
Scientific journal, Japanese

円管のプレス曲げにおける加工硬化指数の影響
村田眞
天田金属加工機械技術振興財団、国際交流報告書，平成19年度国際会議，, 143-144, Sep. 2008
International conference proceedings, Japanese

回転引曲げ加工における円管の軸押し力によるへん平抑制
高橋和仁; 渡邊峻士; 久保木孝; 村田眞; 小野数彦; 矢野巧造
日本塑性加工学学会誌「塑性と加工」, 49, 572, 66-72, Sep. 2008, Peer-reviwed
Scientific journal, Japanese

New Cutting Method for Sheet Metal
Akinori Tanaka; Makoto Murata; Takashi Kuboki; Jin Yingjun
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 1, 112-118, Sep. 2008
International conference proceedings, English

Effect of shape of die on forming limit in rotary nosing with relieved die
T.Kuboki; A.Kominami; Y.Ohde; Makoto Murata
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 79, 194-201, Sep. 2008, Peer-reviwed
International conference proceedings, English

Computational method for calculation of flange dimension in V-bending
K.Imai; J.Koyama; Y.Jin; Makoto Murata; T.kuboki
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 79, 209-216, Sep. 2008, Peer-reviwed
International conference proceedings, English

Formability of A1050 Aluminum Tubes with Different Thickness in Shear Bending Process
Mohammad Goodarzi; Takashi Kuboki; Makoto Murata
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 79, 233-240, Sep. 2008, Peer-reviwed
International conference proceedings, English

Suppression of Flatness in Tube-Draw Bending by Applying Suitable Axial Compressive Force According to Bend Rad II
Kazuhito Takahashi; Takashi Kuboki; Makoto Murata; Kazuhiko Ono; Kouzou Yano
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 79, 241-248, Sep. 2008, Peer-reviwed
International conference proceedings, English

Effect of Temperature on Tube Extrusion and Joining Holed Rib
Tsutomu Moroi; Takashi Kuboki; Makoto Murata
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 79, 677-684, Sep. 2008, Peer-reviwed
International conference proceedings, English

Effect of Shape of Die on Forming Limit in Rotary Nosing with Relieved Die
Takashi Kuboki; Atsushi Kominami; Yusuke Ohde; Makoto Murata
Proceedings of 12th International Conference on Metal Forming，METAL FORMING 2008, 79, 137-144, Sep. 2008, Peer-reviwed
International conference proceedings, English

Effect of plug on levelling of residual stress in tube drawing
Takashi Kuboki; Keigo Nishida; Tomohiro Sakaki; Makoto Murata
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 204, 1-3, 162-168, Aug. 2008, Peer-reviwed, The effect of a plugon residual stress in tube drawingis examinedbyboth numerical analysis and laboratory experiment. In the numerical analysis, finite element method is applied to study the residual stress in tube drawing both with and without a plug. Under the condition that a plug is not used, the axial residual stress is analyzed changing the tube wall thickness. The axial residual stress pattern is almost the same regardless of the wall thickness, and it is tensile near the outer surface and compressive near the inner surface. Based on the results, the mechanism of residual stress generation is assumed and a certain reduction in thickness by a plug is envisaged to be effective for levelling of the residual stress. it is thought that the residual stress would be levelled more efficiently with the increase of reduction in thickness, though the drawing force would increase at the same time. Therefore, it is important to find the minimum bare reduction in thickness to level the residual stress. Successively, a series of numerical experiments was carried out to decide the effective range of thickness reduction by a plug. In order to evaluate the intensity of residual stress, an index, which is the integration of the absolute value of axial residual stress, was introduced. As a result, it is revealed that a certain minimum bare thickness reduction exists, beyond which the intensity of the residual stress is significantly reduced. In order to verify the result of numerical analysis, experiments were also conducted using a drawing machine. In the experiments, the intensity of residual stress was evaluated by a slitting method where the tubes were divided into eight pieces by slitting every 45 degrees and the displacements of the tube ends were measured. The numerical and experimental results are in good agreement. (c) 2007 Elsevier B.V. All rights reserved.
Scientific journal, English

平板の面内逐次打点曲げにおける打撃角度の影響
金英俊; 小山純一; 久保木孝; 村田眞
日本塑性加工学学会誌「塑性と加工, The Japan Society for Technology of Plasticity, 49, 569, 81—85-583, Jun. 2008, Peer-reviwed, Incremental in-plane bending, which was developed by the authors, is a new flexible manufacturing technology for the small-lot production of sheet metals with various bending radii. A sheet metal is bent incrementally by inclined punch beating. Beating angle is an important factor of in-plane bending. The effects of beating angle on in-plane bending were investigated. Beating force, the distribution of thickness strain and bending radius were experimentally determined. It was clarified that beating angle is an important factor that affects bending radius. Moreover, deformation simulation was carried out and the effect of beating angle on the in-plane bending mechanism was compared with experimental result. It was found that there is a critical beating angle for obtaining the minimum bending radius for fixed indentation and width of sheet metals.
Scientific journal, Japanese

Joining of 1050 aluminum circular tube and holed rib by extrusion
Tsutomu Moroi; Takashi Kuboki; Yasunori Senzaki; Makoto Murata
Keikinzoku/Journal of Japan Institute of Light Metals, 58, 6, 246-250, Jun. 2008, Peer-reviwed, Tubes that have the rib internally are used as car parts, for example, structural component, radiator, shock absorbers, and so on. The existence of some holes at the rib enhances the function and value of the tubes. But, the tube with holed rib can not be formed by conventional extrusion. Then, we propose a method that extrudes with a ready made rib. The rib is a machined sheet metal with holes. While the tube is extruded, the rib is fed through a slit of mandrel. Tube and sheet are joined at the same time during extrusion. The mandrel has slit and guide. A guide position h that is a distance from die surface to front edge of the guide is a dominant parameter in this research. When guide position h is controlled, metal flow can be adjusted. We carried out an experiment to clarify the effect of guide position on joining by using A1050. Then, a tensile test clarified that joining strength between tube and rib is 40% of base material. Moreover, flatness was observed in measuring the outside diameter and the inside diameter of the tube.
Scientific journal, Japanese

Effect of hardening exponent on tube bending
M. Murata; T. Kuboki; K. Takahashi; M. Goodarzi; Y. Jin
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 201, 1-3, 189-192, May 2008, There are more than 10 kinds of bending, for example press bending, stretch bending, stretch draw bending and others. There are many studies about characteristics of tube bending. But there is no study about the effects of tubular material property on bending. Therefore, we try to examine the effect of material property about hardening exponent on tube bending. Bending radius, strain distribution, springback and flatness of tube are examined on press bending by FEM (finite element method) and experimental results. The results are about the effects of tubular material property such as hardening exponent n. The effect of hardening exponent is clear in the tube bending in the study. The hardening exponent n does not have an effect on springback, thickness strain distributions and flatness ratio at the same bending radius of same tube dimension. (C) 2008 Published by Elsevier B.V.
Scientific journal, English

Improvement of forming limit by rotary nosing with a relieved die
T. Kuboki; Y. Ohde; M. Murata
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, PROFESSIONAL ENGINEERING PUBLISHING LTD, 222, 2, 245-253, Feb. 2008, Rotary nosing with 'relieved die' is proposed for the shrinking tip diameter of a tube. Press nosing or spinning is conventionally used for shrinking the tip diameter. In press nosing, while the forming limit is low, productivity is high. In spinning, although the forming limit is very high, the productivity is very low. The present proposed rotary nosing is an intermediate method that is expected to achieve a higher forming limit than press nosing and realize higher productivity than spinning. In this present research, the forming limit was first examined experimentally and the mechanism was studied by finite element analysis. Based on the results, rotary nosing with a relieved die was proposed. The relieved die consists of three partial cones so that the die geometry is easily cut out using an ordinary lathe. This type of die can be easily and widely applied for industrial use. The effect of the proposed method was numerically evaluated with regard to the pushing force and hoop stress. Finally, the effect of rotary nosing was verified experimentally and the range was clarified where rotary nosing has a higher forming limit than conventional press nosing.
Scientific journal, English

Effect of die corner radius on the formability and dimensional accuracy of tube shear bending
M. Goodarzi; T. Kuboki; M. Murata
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, SPRINGER LONDON LTD, 35, 1-2, 66-74, Nov. 2007, Tube shear bending is a beneficial technique to realize considerable small bending radii. The authors have investigated the tube shear bending process of circular tubes experimentally. Moreover, an elastoplastic 3D finite element simulation has been conducted, aimed at clarifying the forming mechanism. Both the experiment and simulation results indicate that, in order to perform successful forming, the value of the applied pushing force on the tube must be appropriate. In this paper, the mechanism of defect generation was clarified. Two failure criteria were introduced and employed to recognize the occurrence of defects in the simulation. The effects of the die corner radius, as the main parameter, on the defect generation of circular A1050 aluminum tubes were investigated both by experiments and numerical simulation. From the results, the formability of tube on dies with different corner radii applying various pushing pressures was clarified. Moreover, the influence of the die radius on the dimensional accuracy of the deformed tube regarding cross-section ovality and thickness changes of the deformed tube was evaluated. The results of this study indicate that, whilst a small bending radius results in high cross-section ovality, increasing the die corner radius raises the wrinkling tendency of the tube. However, the die radius has a small effect on the suitable values of pushing pressure required for a successful shear bending deformation. Moreover, the effect of the die corner radius on the thickness strain of the deformed tube is insignificant.
Scientific journal, English

管材・形材の曲げ加工
高橋和仁; 村田眞
軽金属学会，学会誌「軽金属」第57巻，第10号，, 57, 10, 479-486, Oct. 2007
Scientific journal, Japanese

A new extrusion method joining tube and sheet with holed rib
Tstomu Moroi; Takashi Kuboki; Makoto Murata
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, KOREAN SOC MECHANICAL ENGINEERS, 21, 10, 1548-1552, Oct. 2007, Wall thickness is constant in the axial direction when aluminum tubes are formed by conventional extrusion process. Tubes with internal ribs have high strength in comparison with those without ribs. These tubes can be used, for example, as structural parts, heat sinks, and impact absorbers. The existence of some holes at ribs enhances the function and value of the tubes. The appropriate positioning of holes at ribs reduces the weight of structural parts without strength reduction. In the case of heat sinks, holes change the fluid flow and would realize effective heat transfer. In this research, a new extrusion method is proposed by authors for manufacturing tubes with holed ribs. A new extrusion method is applied by FEM analysis. Model experiment was carried out based on the results. The method involves the use of a unique mandrel that has a slit along its axis and two guides at the slit exit. A holed sheet is fed through the slit and joined to the inner surface of the tube. In particular, the effect of the guide height is clarified in this study.
Scientific journal, English

Characteristics of Tube Bending by MOS Bending MachineSeptermber 20-21,2007.
Makoto Murata; Takashi Kuboki; K.Takahashi
Proc.of 2nd Intermational Conference on New Forming Technology, 135-144, Sep. 2007
International conference proceedings, English

Precise Control of Thickness in New Tube-Extrusion Method with Tapered Mandrel
Takashi Kuboki; Takahiro Makiyama; Makoto Murata
Proc.of 2nd Intermational Conference on New Forming Technology, 145-155, Sep. 2007
International conference proceedings, English

Effect of initial thickness on shear bending process of circular tubes
M. Goodarzi; T. Kuboki; M. Murata
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 191, 1-3, 136-140, Aug. 2007, Tube shear bending is a suitable technology to realize considerable small bending radii, which is very difficult to be achieved through common cold-bending processes. The authors have investigated the tube shear bending process experimentally. Moreover, an elasto-plastic 3D finite 14 element simulation has been conducted aiming to analyze the forming process. In this paper, the effects of the initial thickness on the deformation characteristics of the tube shear bending have been investigated both by experiments and numerical simulation. In order to show the validity of simulation, the FEM results of the thickness strains as well as the cross section configurations of the deformed tube have been compared with the experimental ones. The results indicate that under the effect of same pushing pressure, raising the initial thickness, the tube thinning and cross section deformation increase. (C) 2007 Elsevier B.V. All rights reserved.
Scientific journal, English

Forming behavior of shear bending with mandrel as substitution method of hydrofrming
Takashi Kuboki; Mohammad Goodarzi; Makoto Murata
Proc.of Tube Hydroforming Technology, 115-120, Jun. 2007
International conference proceedings, English

Thickness Optimization of Axisymmetric Tube Extruded by A New Method Uisng Tapered Mandrel
Takashi Kuboki; Takahiro Makiyama; Makoto Murata
Industrial Perspecitve of Numerical Forming Processes, ., 370-373, Jun. 2007
International conference proceedings, English

リブに穴を有する管の押出し接合加工
諸井努; 久保木孝; 高岡大和; 村田眞
日本塑性加工学会誌「塑性と加工」, The Japan Society for Technology of Plasticity, 第48, 554, 62-66, Mar. 2007, Peer-reviwed, Tubes with an internal rib have a high strength in comparison with those without a rib. These tubes can be used, for example, as structural parts, heat sinks, and impact absorbers. The existence of some holes at the rib enhances the function and value of the tubes. The appropriate positioning of holes at the rib reduces the weight of structural parts while preserving strength. In the case of heat sinks, holes change the fluid flow and realize effective heat transfer. In this research, a new extrusion method is proposed for manufacturing tubes with a holed rib. The method involves the use of a unique mandrel that has a slit along its axis and two guides at the slit exit. A holed plate is fed through the slit and made into a holed rib of the tube. The flow of the billet is investigated. In particular, the effect of the guide height is clarified in this study.
Scientific journal, Japanese

Deep drawing of 1050 aluminum sheets using high pressure jet water as lubricant
Makoto Murata; Takashi Kuboki
Keikinzoku/Journal of Japan Institute of Light Metals, 56, 9, 469-473, Sep. 2006, Lubricant oil is always used to improve or enhance the deep drawing limit and prevent the damage on the surface of cylindrical parts. Therefore, the oil on cylindrical parts must be cleaned by cleaning agent after deep drawing. Not only the cost of lubricant oil and the cleaning is needed, but also the lubricant oil and cleaner affect the environment of the earth. The authors have created the new deep drawing method to prevent the global environment. High pressure jet water is adopted on the new deep drawing instead of the lubricant oil. The water viscosity is low and the water itself is not suitable for lubricant. But the high pressure water jet is compulsorily supplied to the gap between the die and sheet metal, and strong lubricant membrane is produced in the gap. The effects of the deep drawing conditions are experimentally examined on the new deep drawing using high pressure jet water. Therefore the capability and character of the drawing are made clear in this study.
Scientific journal, Japanese

Ironing on Aluminum Circular Tube to reduce weight
M. Murata; K.Takashi
Porc. of Advances in Materials and Proceesing Technologies, MFVII5 334, Aug. 2006
International conference proceedings, English

Effect of Tube Thickness on Shear Bending Process of Circular Tubes
M.Goodarzi; Takashi Kuboki; M.Murata
Proceedings of Advances in Materials and Proceesing Technologies, MFVII7 327, Aug. 2006
International conference proceedings, English

Effect of Plug on Leveling of Residual Stress in Tube Drawing
Takashi Kuboki; T.Sakaki; M.Murata
Proceedings of Advances in Materials and Proceesing Technologies, p1052, Aug. 2006
International conference proceedings, English

Trend of tubular bending
高橋和仁; 村田眞
軽金属学会論文誌, 56, 5, 283-289, May 2006, Peer-reviwed
Scientific journal, Japanese

Thickness optimization of axisymmetric tube by three-dimensional finite-element analysis for high-flexural rigidity
T Kuboki; T Makiyama; M Murata
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, PROFESSIONAL ENGINEERING PUBLISHING LTD, 220, 4, 473-482, Apr. 2006, A numerical method is proposed for optimizing the wall thickness distribution of axisymmetric tube using three-dimensional finite-element method. It is essential to put intermediate nodes between adjustable nodes in the method. Using the proposed method, the wall thickness distributions are optimized to realize high-flexural rigidity under the condition that volume is constant. It is revealed that the constraint condition has significant effect on the optimized geometry. When the end of the tube is constrained completely, it is not necessary to increase the thickness at the end. In contrast, when the end is not constrained, the thickness must be increased substantially. Therefore, it is important to take the constraint condition of the tube into consideration for tube geometry optimization. It is also demonstrated quantitatively that the geometry optimization realizes the volume reduction of the tube from the point of flexural rigidity per volume. Moreover, the feasibility to produce the optimized tube is studied using a unique extrusion method with tapered mandrel, which has been proposed by the authors. In this unique method, the wall thickness is controlled arbitrarily by positioning the tapered mandrel during extrusion.
Scientific journal, English

逐次打点曲げ加工における平板の面内曲げ挙動に及ぼす打撃パンチの影響
金英俊; 村田眞; 久保木孝
軽金属学会 学会誌「軽金属」, 56巻, 3, 145-149, Mar. 2006, Peer-reviwed
Scientific journal, Japanese

Evaluation Method of Microstructure for Prediction of Ageing Progress in Hypo-eutectoid Carbon Steel
Takashi Kuboki; Akio Miyake; Makoto Murata; Roger Owen
Proc.of Computational Plasticity, 978-983, Sep. 2005
International conference proceedings, English

ool Design for Suppressing Fracture at the Tip of Tube after Nosing with Die
Takashi Kuboki; Yasuhiko Kimura; Makoto Murata; Takeshi Shimoda
Proc.of Computational Plasticity, 599-602, Sep. 2005
International conference proceedings, English

Prediction of static strain hardening progress from cementite morphology in hypo-eutectoid carbon steel
T Kuboki; M Takada; M Murata
MATERIALS SCIENCE AND TECHNOLOGY, MANEY PUBLISHING, 21, 7, 803-812, Jul. 2005, A numerical method is proposed to predict the progress of static strain aging from the cementite morphology in hypo-eutectoid steel in the aging temperature interval from about 473 to 573 K. It is assumed in the approach that strain aging is dominated by the dislocation locking of carbon atoms released during the decomposition of cementite, and that the steel becomes hard in proportion to the amount of diffused carbon atoms in ferrite. Based on scanning electron microscopy images, a finite element mesh was composed, and numerical analyses were carried out in a similar way to heat transfer analysis. As a result, the transfer coefficient of carbon atoms in the ferrite-cementite boundary was estimated compared with experimental results. Moreover, the influence of grain size on strain aging was obtained using the proposed numerical analysis.
Scientific journal, English

Deformation analysis for the shear bending process of circular tubes
M Goodarzi; T Kuboki; M Murata
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 162, 492-497, May 2005, Peer-reviwed, In order to minimize the space of bent tubular parts, a bending technology with small bending radii has been requested recently. Tube shear bending is a suitable technology to realize a considerable small bending radius. In this paper, the procedure of tube shear bending has been introduced. Moreover, an elasto-plastic 3D finite element simulation has been conducted to analyze the forming process. Also the deformation behavior of tube has been investigated. For this purpose, tube strain distribution has been illustrated. The theoretical values of strains have been obtained and compared with the simulated results. In order to show the validity of simulation, the FEM results of tube thickness strain have been compared with the experimental ones. The results of this paper clarify the deformation characteristic of tube during shear bending process. These results demonstrate that the forming process is under a combination of shearing and bending deformations. (c) 2005 Elsevier B.V. All rights reserved.
Scientific journal, English

テーパマンドレルを用いた変肉押出し加工の有限要素シミュレーション
牧山高大; 久保木孝; 村田眞
日本塑性加工学会，平成17年度 塑性加工春季講演会講演論文集, 87-88, May 2005
Scientific journal, Japanese

Compression spinning of circular magnesium tube using heated roller tool
M Murata; T Kuboki; T Murai
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 162, 540-545, May 2005, Peer-reviwed, The tube has high bending and torsional rigidity considering its weight. Thus, tubular products are effective industrial parts to reduce their weight and their employments volume is increasing. Spinning is a very effective and flexible manufacturing technology for short production runs in a variety of sizes and shapes. Spinning is widely applied to the tube forming corresponding to the increasing usage of the tubular parts. Magnesium and its alloys have many good properties as strength to weight ratio, vibration absorbability and excellent recyclability. It is very difficult to form the magnesium alloy to various shaped products. But, it is easy to form the alloys at high temperature. Therefore, authors have invented new Computer Numerical Control (CNC) spinning machine, which has roller tools with heaters. The heated tools heat and form the magnesium tubes into various shapes by the spinning. The forming possibility of magnesium tube and the properties of formed tube are made clear in this paper. (c) 2005 Elsevier B.V. All rights reserved.
Scientific journal, English

Influence of strip materials on behavior of incremental in-plane bending
YJ Jin; T Kuboki; M Murata
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 162, 162–163, 190-195, May 2005, Incremental in-plane bending that has been invented by authors is a new and flexible manufacturing technology for small-lot production of strip with various bending radii. The strip is bent incrementally by an inclined punch beating. The prototype incremental bending machine uses the numerical control technology and bends the strip flexibly. The strip material is an important condition for in-plane bending. The bending experiments are carried out and some experimental results such as beating force, bending radius, strain distribution are experimentally examined. The forming properties of in-plane bending are clarified in this study. Moreover, the approximate formulas for calculation the bending radius are proposed. The bending radius calculated by the proposed formula agrees with one of the experiments. (c) 2005 Elsevier B.V. All rights reserved.
Scientific journal, English

Deformation analysis for the shear bending process of circular tubes
M Goodarzi; T Kuboki; M Murata
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 162, 162-163, 492-497, May 2005, Peer-reviwed, In order to minimize the space of bent tubular parts, a bending technology with small bending radii has been requested recently. Tube shear bending is a suitable technology to realize a considerable small bending radius. In this paper, the procedure of tube shear bending has been introduced. Moreover, an elasto-plastic 3D finite element simulation has been conducted to analyze the forming process. Also the deformation behavior of tube has been investigated. For this purpose, tube strain distribution has been illustrated. The theoretical values of strains have been obtained and compared with the simulated results. In order to show the validity of simulation, the FEM results of tube thickness strain have been compared with the experimental ones. The results of this paper clarify the deformation characteristic of tube during shear bending process. These results demonstrate that the forming process is under a combination of shearing and bending deformations. (c) 2005 Elsevier B.V. All rights reserved.
Scientific journal, English

Changing Inside Diameter of Circular Tube Using New Extrusion Method
M.Murata; T.Kuboki; T.Makiyama
Advanced Manufacturing Systems,Proceeding of The 8th India-Japan Joint Seminar, 15-20, Feb. 2005, Peer-reviwed
International conference proceedings, English

A technical note on the development of prototype CNC variable vertical section extrusion machine
T Makiyama; M Murata
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA, 159, 1, 139-144, Jan. 2005, Peer-reviwed, Saving resource and energy is important in the future as well as in these days. Weight saving of structural parts is important in manufacturing field. Aluminum tubes and channels, which are formed by extrusion, are applied to structural parts for reduction of the products' weight. It will have advantage for reducing the weight of the part to vary a cross section of a part which corresponds to the actual load in the axial direction. Extruded tubes' and channels' cross sections are constant in the axial direction by conventional extrusion method. These tubes and channels need other processes to vary the cross section in the axial direction. Thus, applications of these parts are limited by high cost. If the cross section of the part is variable by only extrusion, application of extruded tubes and channels will increase. Therefore, authors have invented and made a new prototype CNC extrusion machine which can control the thickness of rectangular bar. Using the extrusion machine, the experiment has been performed. The characteristics and possibility of this extrusion has been experimentally studied in this paper. (C) 2004 Elsevier B.V. All rights reserved.
Scientific journal, English

Influence of pitch and cross-sectional ratio of strip of sheet metal on incremental in-plane bending
Yingjun Jin; Makoto Murata
Journal of Materials Processing Technology, 155-156, 1-3, 1810-1814, 30 Nov. 2004, Peer-reviwed, Incremental in-plane bending which has been invented by authors is a new and flexible manufacturing technology for short production runs in a variety of sizes and shapes. The strip of sheet metal is bent incrementally by an inclined punch beating according to the control program. The prototype incremental bending machine, which has been invented and produced, uses the numerical control technology and bends the strip of sheet metal flexibly. The cross-sectional ratio of width to thickness of sheet metal and the pitch are important for in-plane bending conditions. The bending experiment is carried out and some experimental results such as beating force, bending radius and strain distribution are experimentally examined. The forming properties of in-plane bending are clarified in this study. © 2004 Elsevier B.V. All rights reserved.
Scientific journal, English

CNC Incremental Bending Machine
Yingjun.Jin; M.Murata
Proceedings of the First Asia International Symposim on Mechatronics (AISM 2004) , Xi’an China, 211-216, Sep. 2004, Peer-reviwed
International conference proceedings, English

平板の面内逐次打点曲げにおける押込み量の影響
金英俊; 久保木孝; 村田眞
軽金属(軽金属学会誌），社団法人 軽金属学会, 54, 7, 287-292, Jul. 2004, Peer-reviwed
Scientific journal, Japanese

New Extrusion Proess for Variable Wall Thickness Tubes
T.Makiyama; M.Murata
3rd International Conference and Exhibition on Design and Production of Dies and Molds, 7th International symposium on Advances in Abrasive Technology, Bursa, TURKEY, 177-180, Jun. 2004, Peer-reviwed
International conference proceedings, English

CAD and CNC Bending Machine for Circle Tubes
M.Murata; T.Koto
3rd International Conference and Exhibition on Design and Production of Dies and Molds, 7th International symposium on Advances in Abrasive Technology, Bursa, TURKEY, 181-186, Jun. 2004, Peer-reviwed
International conference proceedings, English

超高圧流体を利用した板材の新しい加工
村田眞
財団法人天田金属加工機械技術振興財団 Form Tech Review，第2回助成金研究成果発表会講演論文集 2004/03., 71-76, May 2004
Scientific journal, Japanese

超高圧流体を利用した板材の新しい加工
村田眞
2004/05/21．, 45-58, May 2004, Peer-reviwed
Scientific journal, Japanese

Development of Prototype CNC Extrusion Machine For Changing Wall Thickness of Tube with Tapered mandrel
T.MAKIYAMA; T.KUBOKI; M.MURATA
Asia Youth Forum on Advanced Manufacturing Japan Society of Mechanical Engineers(JSME), 27-30, Feb. 2004
International conference proceedings, English

超高圧の水による潤滑油を用いない板材加工加工
村田眞
財団法人天田金属加工機械技術振興財団，研究概要報告書，国際交流報告書, 16, 39-42, Feb. 2004
Research society, Japanese

Flexible CNC Bender of Tube and CAD for Bending
M.Murata; T.Kato
Cold Rollforming Steel Technology & Equipment 2003 International Conference IN China, .27-35, Dec. 2003
International conference proceedings, English

Newest Flexible CNC Tube Bender and CAD for Bending
M.Murata; T.Kato
International Tube Association Conference,Asia Pacific Tube 2003, 23-27, Sep. 2003
International conference proceedings, English

Study on Extrusion Method for Changing Wall Thickness of Tube with Tapered Mandrel
T.Makiyama; M.Murata
Proc.of Advances in Materials and Technologies, 1174-1177, Jul. 2003
International conference proceedings, English

Influence of Pitch and Cross Sectional Ratio of Strip of Sheet Metal on Incremental In-Plance Bending
Y.Jin; M.Murata
Advances in Materials and Processing Technologies 2003, 1200-1203, Jul. 2003
International conference proceedings, English

New Flexible CNC Bender for Tube and CAD
M.Murata; T.Kato
釜山国際機械技術大展 「最新精密機械技術の世界動向および活用」， 韓国機械学会特別セミナー, 1-8, May 2003
International conference proceedings, English

Recent Tube Forming Situation in Japan
M.Murata
The Korean Society of Manufacturing Process Engineers, Proceeding of the KSMPE Conference 2003.05/17, 9-20, May 2003
International conference proceedings, English

Flexible CNC Bender for Tube
M.Murata; T.Kato
Aisa Youth Forum on Advanced Maunfacturing in Japan, 2003.3.2-3.8., 9-16, Mar. 2003
International conference proceedings, English

Effects of indented feed of roller tool on parallel spinning of circular aluminum tube
Yao Jianguo; Murata Makoto
Journal of Materials Processing Technology, 128, 1-3, 274-279, 06 Oct. 2002, Spinning is a very effective and flexible manufacturing technology for short production runs in a variety of sizes and shapes. Spinning is widely applied in the tube forming corresponding to the increased usage of the tubular parts. Authors have built a prototype computer numerically controlled spinning machine which uses the numerical control technology to spin a tube instead of dies in order to improve the tube processing. The indented feed of a roller tool is one of the important spinning conditions. The effects on the spinning force, spinning accuracy and thickness strain are experimentally examined in this study as a function of indented feed of the roller tool on parallel spinning of a circular aluminum tube. The spun tube properties are also made clarified. Results show that with the increment of indented feed of roller tool, the wall-thickness strain and the axial strain becomes steady, the spinning force increases, the diameter accuracy becomes worse, and the surface hardness as well as surface roughness increase. © 2002 Elsevier Science B.V. All rights reserved.
Scientific journal, English

An experimental study on paraxial spinning of one tube end
Yao Jianguo; Murata Makoto
Journal of Materials Processing Technology, 128, 1-3, 324-329, 06 Oct. 2002, Spinning technology is widely applied in the production of the axisymmetric industrial parts. The application of spinning technology in tube forming is increasing recently corresponding to the increased usage of the tubular parts. In this study, an experiment of paraxial spinning on one end of circular aluminum tube is performed with the parameters of diametral reduction and spinning pitch. The experimental results show that the thickness strain, the spinning force, the twisting angle and the surface roughness increase as the tube diameter reduces and the spinning pitch increases. The axial strain increases as the tube diameter reduces and the spinning pitch decreases. The diametral accuracy becomes better as tube diameter reduces and the spinning pitch decreases. The forming characteristics of paraxial spinning on one tube end are made clarified in this study. © 2002 Elsevier Science B.V. All rights reserved.
Scientific journal, English

Effects of indented feed of roller tool on parallel spinning of circular aluminum tube
Yao Jianguo; Murata Makoto
Journal of Materials Processing Technology, 128, 1-3, 274-279, 06 Oct. 2002, Spinning is a very effective and flexible manufacturing technology for short production runs in a variety of sizes and shapes. Spinning is widely applied in the tube forming corresponding to the increased usage of the tubular parts. Authors have built a prototype computer numerically controlled spinning machine which uses the numerical control technology to spin a tube instead of dies in order to improve the tube processing. The indented feed of a roller tool is one of the important spinning conditions. The effects on the spinning force, spinning accuracy and thickness strain are experimentally examined in this study as a function of indented feed of the roller tool on parallel spinning of a circular aluminum tube. The spun tube properties are also made clarified. Results show that with the increment of indented feed of roller tool, the wall-thickness strain and the axial strain becomes steady, the spinning force increases, the diameter accuracy becomes worse, and the surface hardness as well as surface roughness increase. © 2002 Elsevier Science B.V. All rights reserved.
Scientific journal, English

Caharacterristic and Benefit of New Deep Drawing Uisng High-Pressured Water
M.Murata; H.Miyamoto
Proceedings of the 7th ICTP,Oct.28-31,2002, Yokomama,Japan, Advanced Technology of Plasticity 2002, Vol.2, 1645-1650, Oct. 2002
International conference proceedings, English

New Extrusion Machine for Controlling Inside Diameter of Circular Tube
T.Makiyama; M.Murata
Proceedings of the 7th ICTP Advanced Technology of Plasticity 2002,, Vol.2, 1729-1734, Oct. 2002
International conference proceedings, English

Paraxial Spinning on One end of Circular Aluminum Tube
Jianguo Yao; M.Murata
Proceedings of the 7th ICTP,Oct.28-31,2002,Yokomama,Japan Advanced Technology of Plasticity 2002, Vol.2, 1735-1740, Oct. 2002
International conference proceedings, English

塑性加工における新世紀の環境技術
佐野利男; 久保勝司; 片岡征二; 村田眞; 大久保惠嗣; 川井謙一
Journal of the JSTP, 43, 500, 863-867, Sep. 2002
Scientific journal, Japanese

Controlling Inside Diameter of Circular Tube by Extrusion
T.Makiyama; M.Murata
Proceedings of The 8th International Conference on Aluminum Alloys, 2002.7.2-7.5, 396, 402, 513-518, Jul. 2002
International conference proceedings, English

Simulation for Hemming of Aluminum Sheet Metal
M.Murata,Liu Junhu; K.Tanaka
Proceedings of The 8th International Conference on Aluminum Alloys, 396, 402, 1629-1634, Jul. 2002
International conference proceedings, English

Effects of forming conditions on parallel spinning for circular aluminum tube
Y Jianguo; M Makoto
ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3, TRANS TECH PUBLICATIONS LTD, 396-4, 402, 1635-1640, 2002, Tube is widely applied in the light-weighted industrial products attributing to a high rigidity with regard to its weight. Spinning is suitable for the production of a hollow shape having a surface of revolution, such as tubular products and many other axi-symmetric components. A tube can be formed into various shape of rotational symmetry by the radial and axial feeds of roller tools. Therefore, the radial indented feed and axial feed pitch are important working conditions for tube spinning. An experimental study on parallel spinning of tube has been carried out, and the effects of the radial indented feed and axial feed pitch of roller tool on forming properties of tube spinning, such as force, strain and accuracy are examined in this study. The forming properties of tube spinning are made clarified.
Scientific journal, English

Deep Drawing Using High-Pressured Water With Cleanser
M.Murata; H.Miyamoto
Proceeding of The International Conference, Sheet Metal 2001, 2-4 April 2001, 191-198, Apr. 2001
International conference proceedings, English

Truncated Cone Spinning of Sheet Metal
Murata,N.Ohara
Proceeding of The International Conference, Sheet Metal 2001, 2-4 April 2001, 199-204, Apr. 2001
International conference proceedings, English

円管のスピニング加工精度に及ぼす肉厚の影響
村田 眞; 牟田玲子
塑性と加工（日本塑性加工学会誌）, 42, 481, 42-46, Feb. 2001
Japanese

Lightening of Parts Using Tube
Makoto Murata
Proceeding of International Committee on Environment and Manufacturing (ICEM ASIA-2000), 2000,Novermber 23-25, 67-77, Nov. 2000
International conference proceedings, English

New CNC Spinning Machine
M.Murata
Proceeding of International Committee on Environment and Manufacturing (ICEM ASIA-2000), 2000,Novermber 23-25, 78-8., Nov. 2000
International conference proceedings, English

Deep Drawing of Sheet Metal Using High Pressure Jet water
M.Murata
Proceeding of International Workshop on Ecology and Economy in Manufacturing ICEM-2000, Bled, Slovenia, September, 17-20,2000, 64-70, Sep. 2000
International conference proceedings, English

CNC bending with oscillating collect Technokogy
M. Murata; T. kato
Proceeding of The Tube & Pipe Journal, 11, 4, 26-31, Jun. 2000
English

Ironing on Circular Tube for Reduction of Weight
M. Murata; H. Miki
Proceedings of The 7th International Conference on Aluminum Alloy, 643-648, Apr. 2000
International conference proceedings, English

Extrusion with Changing on Inside Diameter of Circular Tube
T. Makiyama; M. Murata; K. Hasegawa
Tube "Proceedings of The 7th International Conference on Aluminum Alloy, 675-680, Apr. 2000
International conference proceedings, English

廃棄物削減，無害化に寄与する技術
村田 眞
（財）機械システム振興協会製造科学技術センター，エミッションフリーマニュファクチャリングシステムの調査研究報告集, 88-98, Mar. 2000
Japanese

Flexible Tube Forming Method by Computer Numerical Control System
M. Murata
Proceeding of The 4^t^h India-Japan Joint Seminar on Advanced Manufacturing Sysmte, 19-36, Feb. 2000
International conference proceedings, English

管材のCNCスピニング加工機の開発
村田 眞
財団法人天田金属加工機械技術振興財団，研究概要報告書・国際交流報告書集, 12, 40-44, Feb. 2000
Japanese

Deep Drawing of Sheet Metal with Hydraulic Counter Pressure and Vibration using volatile Lubricant
S. Kataoka; M. Murata
Proceedings of the 6th International Conference on Thecnology of Plasticity, 633-636, Sep. 1999
International conference proceedings, English

Effects of Compressive Forces on Axial Direction in Tube Spinning
R. Muta; M. Murata
Proceedings of the 6th International Conference on Thecnology of Plasticity, 645-650, Sep. 1999
International conference proceedings, English

Extrusion with Changing Cross Section Shape of Tube"
M. Murata; K. Hasegawa
Proceedings of the 6th International Conference on Thecnology of Plasticity, 677-680, Sep. 1999
International conference proceedings, English

Numerical calculation of Saquare Tube Bending by MOS Bending Method
M. Murata; T. Mochizuki
Pro.of the 6th International Conference on Thecnology of Plasticity, 2355-2360, Sep. 1999
International conference proceedings, English

Highly Improved Function and Productivity with the MOS CNC Tube Bender
M. Murata; T. Kato
Proceeding of Tube & Pipe Technology, 77-80, Jun. 1999
English

環境対応型産業機械に関する調査研究―素材の表面・表層処理（プレコート）
村田 眞
財団法人機械信仰協会経済研究所・製造科学技術センター, 121-136, May 1999
Japanese

Next Generaton CNC Tube Bender Using MOS Bending Method
M. Murata
Proceeding of ASIAN Industrial Technology Congeress, CD-ROM., Apr. 1999
English

No Lubricant of Thin Sheet Metal Using Ultra-High Presuure Gas
M. Murata
Proceeding of International Workshop on Environmental and Economic Issues in Metal Processing, 215-224, Nov. 1998
English

Circular Hole Punching of Thin Sheet Metal Using Ultra-high Pressure Gas
M. Murata
Proceeding of The third Japan-India Joint on"Advanced Manufacturing System", 122-129, Oct. 1998
English

Highly Improved Function and Productivity for Tube Bendings by CNC Bender
M. Murata; T. Kato
Tube 2000 Conference Proceeding, 329-340, Jun. 1998
English

COBCAVE CIRCULARE SPINING OF CIRCULAR TUBE USING DISK TUBE
M. Murata; R. Muta
Proceedings of The 6th International Conference on Aluminum Alloy, 407-412, May 1998
English

EXTRUSION WITH CHANGEING CROSS SECTION SHAPE OF TUBE
M. Murata; K. Hasegawa
Proceedings of The 6th International Conference on Aluminum Alloy, 431-436, May 1998
English

Analysis of Square Tube Bending by MOS Bending Method
M. Murata; T. Mochizuki
Proceedings of The 6th International Conference on Aluminum Alloy, 437-442, May 1998
English

SHRINK HEMMING OF ALUMINUM ALLOY SHEET METAL
M. Murata; T.Nada
Proceedings of The 6th International Conference on Aluminum Alloy, 473-478, May 1998
English

正方形管の軸対称外曲げ加工におけるアプローチ長さVの影響
村田 眞; 望月隆史
平成10年度塑性加工春季講演会講演論文集, 65-66, May 1998
Japanese

超高圧気体による難加工材の穴あけ加工
村田 眞
平成10年度塑性加工春季講演会講演論文集, 189-190, May 1998
Japanese

断面形状が変化する短形管の押出加工
村田 眞; 長谷川幸嗣; 金房英人
平成10年度塑性加工春季講演会講演論文集, 355-356, May 1998
Japanese

ヘミング加工における変形特性の材質による影響
村田 眞; 名田卓生
平成10年度塑性加工春季講演会講演論文集, 421-422, May 1998
Japanese

スピニング加工による拘束条件による影響
村田 眞; 根岸秀明; 村中正則
平成10年度塑性加工春季講演会講演論文集, 439-440, May 1998
Japanese

スピニング加工による軸圧縮力の影響
村田 眞; 牟田玲子; 上村健司
平成10年度塑性加工春季講演会講演論文集, 441-442, May 1998
Japanese

スピニング加工による軸圧縮力の加工形状への影響
村田 眞; 牟田玲子
軽金属学会第94回春期大会講演概要, 145-146, May 1998
Japanese

管のハイドロフォーミング技術, Musafa Ahmtoglu, Kevin Sutter, XinJun Li, Taylan Altan著，村田 眞翻訳
村田 眞
塑性と加工（日本塑性加工学会誌）, 39, 453, 1039-1044, 1998
Japanese

Bending, flanging and hemming of aluminum sheet - An experimental study
A Muderrisoglu; M Murata; MA Ahmetoglu; G Kinzel; T Altan
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA LAUSANNE, 59, 1-2, 10-17, May 1996, Hemming is often used as the last stage of stamping operations. It is used either to improve appearance (to create a smooth edge rather than a razor edge with burrs) or to attach one sheet metal part to another. Hemming is defined as folding of bent or flanged sheet to 180 degrees or more. However, the deformation mechanism, and hence the process, is different and more complex than simple bending and flanging processes. Therefore, very little information is available in research literature, and most of the hemming dies are designed based on trial and error. This paper gives the results obtained from the hemming experiments that were conducted at the Engineering Research Center for Net Shape Manufacturing (ERC/NSM) by using Aluminum Alloy 1050.
Scientific journal, English

Experimental Study of Square Tube Bending by MOS Bending Method
Journal of the Japan Society for Technology of Plasticity, 37, 424, 515, 1996
Scientific journal, English

Effects of Various Working Conditions on Tube Bulging by Electromagnetic Forming
Jaurnal of Materials Processing Tochnology, 48, 113, 1995
Scientific journal, English

Punchless Punching of Thin Sheet Metal by Ultrahigh Pressure Gas For Circular Hole
Journal of Materials Processing Tochnology, 48, 59, 1995
Scientific journal, English

Effect of Conditions of Springback in Rotary Bending of Sheet Metals-An Investigation of Rotary Bending of Sheet Metals-
UENO Keii; MURATA Makoto; SUZUKI Hideo
Journal of the Japan Society for Technology of Plasticity, 日本塑性加工学会, 36, 418, 1223-1227, 1995
Scientific journal, English

PUNCHLESS PUNCHING OF THIN SHEET-METAL BY ULTRAHIGH PRESSURE GAS FOR CIRCULAR HOLE
M MURATA; Y UEDE; H SUZUKI
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA LAUSANNE, 48, 1-4, 59-68, Jan. 1995, Traditional punching of sheet metal is performed by punches and dies. If the thickness of the sheet metal is less than 0.1mm, the clearance between the punch and die has to be less than 0.005mm. As the clearance decreases, the punches and dies tend to suffer damage and wear away, and the extreme accuracy of the installation between punches and dies is necessary. As the hole diameter becomes smaller,the punch tend to be broken because of the reduction of punch rigidity. We have studied a new punching method for the thin sheet metal using ultrahigh pressure gas without punch. In this paper, the punching process of circular holes for the sheet is discussed experimentally. The workpieces are thin metal sheets of aluminum and copper. The thicknesses are 0.05 and 0.10mm, and the diameters of the holes range from 1.0mm to 5.0mm. The punching mechanism was clearly explained. The prediction of the minimum pressure required to punch the holes of given sizes could be calculated according to the sheet thicknesses and mechanical properties. The predicted pressure for punching agree well with experimental results for the hole sizes. The cut edge of punched holes have a large shear droop and small fracture surface with a good degree of accuracy in size. The diameters of punched holes are a little small for dies diameters. The differences between punched and dies diameters are about 0.025mm in spite of the material, thickness and hole diameters. The punching of the thin sheet metal was worked easily with high accuracy by our newly invented punchless punching method using ultrahigh pressure gas.
Scientific journal, English

EFFECTS OF VARIOUS WORKING-CONDITIONS ON TUBE BULGING BY ELECTROMAGNETIC FORMING
H ZHANG; M MURATA; H SUZUKI
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, ELSEVIER SCIENCE SA LAUSANNE, 48, 1-4, 113-121, Jan. 1995, Electromagnetic forming is one kind of plastic working, called high-energy-rate forming method. There are two types of electromagnetic forming. One is called the solenoidal coil method[1], and other is called as the direct electrode contact method[2] in which the discharge current flows directly through the workpiece. The tube bulging using solenoidal coil has been described in many papers[3,5], in the previous papers, the influence of the magnetic field and skin depth and the optimum working conditions have not been investigated.
In the electromagnetic forming, tubular bulging depends on the working conditions. For example, the tube can hardly be formed, when the capacitor bank is highly charged even through a large current flows into the forming toil. In this paper, considering the influence of changing of the magnetic field and skin depth on the forming tube, the magnetic pressure is deviated. Using the magnetic pressure, the effects of changing the working conditions such as the capacity of capacitor bank, the length of solenoidal coil were analytically and experimentally investigated for the electromagnetic forming process and the forming efficiency.
Scientific journal, English

Influence of thickness on punchless punching of thin sheet pure aluminum by ultrahigh pressure gas for circular hole
Makoto Murata; Hideo Suzuki; Yasushi Uede; Shouichi Masuda
Journal of Japan Institute of Light Metals, 44, 12, 709-714, 1994, Conventional punching of sheet metal has been performed by punches and dies. If the thickness of the sheet metal is less than 0.1mm, the clearance between the punch and die has to be less than 0.005mm. As the clearance decreases, the punches and dies tend to suffer damage and wear away, and the extreme accuracy of the installation between punches and dies tend to be broken because of the reduction of punch rigidity. We have studied a new punching method for the thin sheet metal using ultrahigh pressure gas without punch. In this paper, we discuss experimentally the influence of the thickness of workpieces for the punching process of circular holes. The workpieces are sheets of aluminum, and the thicknesses are 0.3-0.8mm. The diameter of hole of dies ranges from 1.0 to 15.0mm. The punching mechanism is clearly explained. The minimum pressure required to punch the holes of given sizes could be predicted from thickness and mechanical properties of the sheet. The edge of punched holes has a large shear droop and small fracture surface. The diameter of punched holes is slightly smaller than that of dies diameters. These points are same to the results of thinner workpieces. But burrs are occurred for the workpieces over 0.6mm on thickness. This machine is suited for punching thin sheet metal. © 1994, The Japan Institute of Light Metals. All rights reserved.
Scientific journal, English

Punchless Punching of Thin Sheet Metal by Very High Pressure Gas for Circular hole
MURATA Makoto; UEDE Yasushi; SUZUKI Hideo
Journal of the Japan Society For Technology of Plasticity, 日本塑性加工学会, 35, 402, 829-834, 1994
Scientific journal, English

Development of CNC Machine for Tube Bending
Journal of the Japan Society for Technology of Plasticity, 35, 398, 262, 1994
Scientific journal, English

Tube Bulging by Electromagnetic Forming Using Sheet Spiral Coil
Journal of The Japan Society of Mechanical Engineers, 59, 567, 351, 1994
Scientific journal, English

Experimental Examination of the Optimum Working Conditions on Electromagnetic Tube Bulging Using Solenoidal Coils
ZHANG Hai; MURATA Makoto; AIZAWA Tomokatsu; SUZUKI Hideo
Journal of The Japan Society for Technology of Plasticity, 日本塑性加工学会, 34, 392, 1028-1033, 1993
Scientific journal, English

Electromagnetic Tube Bulging by Direct Electrode Contact
MURATA Makoto; ZHANG Hai; YOKOUCHI Yasto; SUZUKI Hideo
Journal of The Japan Society of Mechanical Engineers, The Japan Society of Mechanical Engineers, 58, 554, 272-3146, 1992, A method of electromagnetic tube bulging by direct electrode contact is studied. The magnetic pressure is produced by a huge impactive electric current which passes through the electrode contact and the tube. The current is generated by the transient phenomenon of discharge on the condenser bank. An analysis of tube bulging is made using the finite-element method, and a formulation of the finite-element method based on the axisymmetrical membrane shell theory is developed. Impulsive magnetic pressure is assumed as an internal pressure load. The acceleration, velocity and displacement, and the (final profile and strain distribution are given. These agree approximately with experimental values.
Scientific journal, English

フレキシブルな円管の曲げ加工機
村田 眞
Apr. 2009, 日本ロボット学会誌, 27, 3, 291-295, Japanese, Introduction other

最近の塑性加工に関する動向-押出し加工とチューブフォーミング-
村田眞
Sep. 2008, （社）高岡アルミニウム懇話会，アルミ情報誌「アルミ情報」 2008/09, 353, 6-7, Japanese, Introduction other

最新 機械機器要素技術
吉川; 昌範代表; 他; 村田 眞含む
Japanese, Joint work, 第3章 機械機器要素の加工技術 3.7 円管の加工(チューブフォーミング), （有）エヌジーティー (編集＆印刷) 明誠企画株式会社, Jun. 2008

自動車軽量化のための生産技術
兵藤陽一; 櫻井健夫; 木山啓; 村田眞; 上野完治; 北岡山治; 西直美; 安達充; 中里敏雄; 脇坂泰成
Japanese, Joint work, 塑性加工 ２－３ 造管加工・チューブフォーミング, 社団法人 軽金属学会編集,日刊工業新聞社, Jul. 2003

塑性加工技術シリーズ(16)
村田 眞
Japanese, Joint work, 高エネルギー速度加工, コロナ社, Apr. 1993

厚板のV曲げ加工における変形形状の比較検討
ハムタ・ナランバータル; 村田眞; 久保木孝; 英俊; 株)アマダ
Oral presentation, Japanese, 塑性加工春季講演会 講演論文集/日本塑性加工学会,塑性加工春季講演会
Jun. 2012

高圧水を用いた深い絞り加工における潤滑特性の検討
斉藤弘; 久保木孝; 村田眞; 坪倉誠; 松井和己
Oral presentation, Japanese, 塑性加工春季講演会 講演論文集/日本塑性加工学会,塑性加工春季講演会
Jun. 2012

電縫管の均等曲げにおける変形挙動
高橋和仁; 久保木孝; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会 講演論文集/日本塑性加工学会,塑性加工春季講演会
Jun. 2012

押出加工による内面に捩られた突起を持つ円管
村田眞; 久保木孝; 小林雅志; 山崎弘之
Oral presentation, Japanese, 第122回春期大会講演概要 講演論文集/軽金属学会,第122回春期大会
May 2012

薄板のL曲げ加工における曲げ半径の影響
林洪ラン,村田眞; 金英俊(アマダ; 久保木孝
Oral presentation, Japanese, 塑性加工連合講演会論文集(第62回)/日本塑性加工学会,塑性加工連合講演会(第62回)
Dec. 2011

板材の新しいせん断加工における切断特性の解析および実験的検討
路大涛; 村田眞; 久保木孝; 金英俊
Oral presentation, Japanese, 塑性加工連合講演会論文集/日本塑性加工学会,日本塑性加工学会，平成23年度 塑性加工連合講演会(第62回)
Oct. 2011

鋼板のレーザ切断における加工変質層および残留応力特性
村上祐一; 久保木孝; 村田眞; 金英俊
Oral presentation, Japanese, 塑性加工連合講演会論文集(第62回)/日本塑性加工学会,日本塑塑性加工連合講演会(第62回)
Oct. 2011

ダイス曲げ半径に応じた側面圧縮ダイスにおける圧縮量の適正化
高橋和仁; 久保木孝; 山口康大; 村田眞
Oral presentation, Japanese, 塑性加工連合講演会論文集(第62回)/日本塑性加工学会,塑性加工連合講演会(第62回)
Oct. 2011

内面にスパイラルの突起を持つ円管の押出加工
小林雅志; 村田眞; 久保木孝; 稲川雄貴; 山崎弘之(LIXIL
Oral presentation, Japanese, 塑性加工連合講演会論文集(第62回)/日本塑性加工学会,14塑性加工連合講演会(第62回)
Oct. 2011

V曲げ加工における厚板の変形形状に及ぼす板幅の影響
ハムタ・ナランバータル; 村田眞; 久保木孝; 金英俊
Oral presentation, Japanese, 塑性加工連合講演会論文集/日本塑性加工学会,塑性加工連合講演会(第62回)
Oct. 2011

L曲げ加工を用いた板材の高精度曲げ加工
村田眞; 久保木孝; ハムタ・ナランバータル; 金英俊(アマダ
Oral presentation, Japanese, 塑性加工連合講演会論文集/日本塑性加工学会,塑性加工連合講演会(第62回)
Oct. 2011

鋼板の機械特性に及ぼす圧延圧下率の影響
松本亨; 村田眞; 久保木孝; 金英俊(アマダ
Oral presentation, Japanese, 塑性加工連合講演会論文集(第62回)/日本塑性加工学会,塑性加工連合講演会(第62回)
Oct. 2011

極薄板の逐次打点曲げ加工
濱智史; 村田眞; 久保木孝
Oral presentation, Japanese, 塑性加工連合講演会論文集(第62回)/日本塑性加工学会,塑性加工連合講演会(第62回)
Oct. 2011

押出し加工による内面壁に捩じられた突起を付けた円管の突起数の影響
村田眞; 稲川雄貴; 久保木孝; 山崎弘之(LIXI
Oral presentation, Japanese, 塑性加工春季講演会 講演論文集/日本塑性加工学会,塑性加工春季講演会
Jun. 2011

薄板のL曲げ加工における板厚とクリアランスの影響
村田眞; 久保木孝; ハムタ・ナランバータル; 英俊; 株)アマダ; 小山純一; アマダ
Oral presentation, Japanese, 軽金属学会，平成23年度軽金属学会 第120回春期大会講演概要,平成23年度軽金属学会 第120回春期大会
May 2011

厚板のV曲げにおける曲げ型のスプリングバックに及ぼす影響
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩; アマダ; 金英俊; 株)アマダ
Oral presentation, Japanese, 平成23年度第120回春期大会講演概要 / 軽金属学会,平成23年度軽金属学会 第120回春期大会
May 2011

板材の新しいせん断加工における変形挙動の解析および実験的検討
路大涛; 村田眞; 久保木孝; 金英俊; 株)アマダ
Oral presentation, Japanese, 第120回春期大会講演概要/軽金属学会,平成23年度軽金属学会 第120回春期大会
May 2011

有限要素法を用いたマイクロチューブにおけるプラグ形状の選定
森脇勇介; 久保木孝; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会概要(第42回)/日本塑性加工学会,日本塑性加工学会，平成23年度 塑性加工春季講演会(第42回).
May 2011

板材のL曲げ加工におけるクリアランスの影響
村田眞; 金英俊; 株)アマダ; 久保木孝; 小山純一; アマダ
Oral presentation, Japanese, 平成23年度 塑性加工春季講演会概要/日本塑性加工学会,日本塑性加工学会，平成23年度 塑性加工春季講演会(第42回)
May 2011

レーザ切断した板の曲げ加工特性
村田眞
Others, Japanese, 財団法人天田金属加工機械技術振興財団,研究概要報告書・国際交流報告書(財団法人天田金属加工機械技術振興財団
Mar. 2011

1050板の新しいせん断加工と従来のせん断加工との加工力の比較
路大涛; 村田眞; 久保木孝; 金英俊(アマダ
Oral presentation, Japanese, 軽金属学会 第119回秋期大会講演概要,第119回秋期大会
Nov. 2010

側面圧縮を付与した回転引曲げ加工における5056アルミニウム合金円管のへん平抑制
高橋和仁; 平塚友望; 久保木孝; 村田眞; 矢野功造(コマ
Oral presentation, Japanese, 軽金属学会第119回秋期大会講演概要,第119回秋期大会
Nov. 2010

5083アルミニウム合金厚板の突き曲げに関する研究
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆造(アマ; 金英俊(アマダ
Oral presentation, Japanese, 軽金属学会第119回秋期大会講演概要,軽金属学会 第119回秋期大会講演概要
Nov. 2010

管の矯正加工における断面の変形挙動
黄河; 久保木孝; 村田眞
Oral presentation, Japanese, 第61回塑性加工連合講演会講演論文集/日本塑性加工学会,第61回塑性加工連合講演会
Oct. 2010

凹型ロールを用いた伸線加工における被加工材の機械的特性
青木一充; 久保木孝; 村田眞
Oral presentation, Japanese, 第61回連合講演会講演論文集/日本塑性加工学会,平成22年度 第61回連合講演会
Oct. 2010

穴のあいたリブを有する管の押出し接合における材料流動
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 第61回連合講演会講演論文集/日本塑性加工学会2010/10,第61回塑性加工連合講演会
Oct. 2010

バウジンガー効果を考慮した板曲げスプリングバック予測に関する研究
後藤慎太郎; 久保木孝; 村田眞; 金英俊; 株)アマダ
Oral presentation, Japanese, 第61回塑性加工連合講演会 講演論文集/日本塑性加工学会,第61回塑性加工連合講演会
Oct. 2010

極薄肉大口長尺ステンレス管成形用スピニング装置の開発 第二報 成形品形状に及ぼす成形要因の解析
三田和彦; ディムコ; 守屋進; 株)ディムコ; 石田啓輔; ディムコ; 松田清義; ディムコ; 佐久間優; ディムコ; 村田眞; 久保木孝
Oral presentation, Japanese, 第61回塑性加工連合講演会 講演論文集/日本塑性加工学会,第61回 塑性加工連合講演会
Oct. 2010

Effect of Tool Angle on New shearing Method of 1100 Aluminium Sheet
D.Lu; M.Murata; Takashi.Kuboki; Yingjun.Jin
Oral presentation, English, The 12th International Conference on Aluminum Alloys, (2010.9.5-9.8),pp.548-553，開催場所:(パシフィコ・横浜国際会議センター).
Sep. 2010

新しい押出加工の創成研究部会報告書「押出加穴の開いたリブを有する管の製造方法に関する研究」
森謙介; 高辻則夫; 白石光信; 新川真人; 村田眞; 諸井努; 米山猛; 星野倫彦; 中山昇
Others, Japanese, 新しい押出加工の創成研究部会,新しい押出加工の創成研究部会報告書「新しい押出加工を目指して」
Jul. 2010

5083厚板のV曲げ加工におけるパンチ先端部半径の影響
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩; アマダ; 金英俊; 株)アマダ
Oral presentation, Japanese, 平成22年度軽金属学会 第118回春期大会講演概要/軽金属学会,平成22年度軽金属学会 第118回春期大会
May 2010

1050板の新しいせん断加工における切断幅の影響
路大涛; 村田眞; 久保木孝; 金英俊; 株)アマダ
Oral presentation, Japanese, 平成22年度軽金属学会 第118回春期大会講演概要/軽金属学会,第118回春期講演会
May 2010

A1050楕円管の口絞り加工
村田眞; 久保木孝; 小南敦嗣; 佐藤雅也
Oral presentation, Japanese, 平成22年度軽金属学会 第118回春期大会講演概要/軽金属学会,第118回春期大会
May 2010

管とリブの押出し接合における管肉厚とガイド位置が加工後の接合強度と成形品に及ぼす影響
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成22年度 塑性加工春季講演会論文集(第41回,平成22年度 塑性加工春季講演会(第41回）
May 2010

板材の新しいせん断加工における加工力について
路大涛; 村田眞; 久保木孝; 金英俊; 株)アマダ
Oral presentation, Japanese, 平成22年度 塑性加工春季講演会論文集/日本塑性加工学会,平成22年度 塑性加工学会春季講演会(第41回)
May 2010

極薄肉大口径長尺ステンレス管成形用スピニング装置の開発
三田和彦; ディムコ; 守屋進; 株)ディムコ; 石田啓輔; ディムコ; 村田眞; 久保木孝; 高橋奈生人
Oral presentation, Japanese, 平成22年度 塑性加工春季講演会論文集(第41回)/日本塑性加工学会,日本塑性加工学会，平成22年度 塑性加工春季講演会(第41回)
May 2010

側面圧縮における円管のへん平抑制
高橋和仁; 久保木孝; 村田眞; 矢野功造(コマ
Oral presentation, Japanese, 平成22年度塑性加工春季講演会論文集(第41回)／日本塑性加工学会,日本塑性加工学会，平成22年度 塑性加工春季講演会(第41回)
May 2010

V曲げ加工における5083厚板の形状精度に及ぼす曲げ型仕様の影響
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩; アマダ; 金英俊; 株)アマダ
Oral presentation, Japanese, 平成22年度 塑性加工春季講演会論文集(第41回)/日本塑性加工学会,日本塑性加工学会，平成22年度 塑性加工春季講演会(第41回)
May 2010

加工履歴を有する金属材料の機械特性予測に関する研究”，
小栗潤一; 村田眞; 久保木孝; 黒田浩一; 寺田賢二郎
Oral presentation, Japanese, 平成22年度 塑性加工春季講演会論文集(第41回)/日本塑性加工学会,平成22年度 塑性加工春季講演会(第41回)
May 2010

管のユニークな加工
村田眞
Public symposium, Japanese, 平成22年度 軽金属学会 第86回シンポジウム「軽金属の特殊加工」, 軽金属学会論文誌, 習志野市 津田沼
Apr. 2010

1100板の新しいせん断加工におけるクリアランスの影響
路大涛; 田中彰典; 村田眞; 久保木孝; 金英俊
Oral presentation, Japanese, 軽金属学会，平成21年度軽金属学会 第117回秋期大会講演概要,平成21年度 軽金属学会 第117回秋期大会
Nov. 2009

5083厚板のV曲げ加工における変形特性
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩; 金英俊
Oral presentation, Japanese, 軽金属学会，平成21年度軽金属学会 第117回秋期大会講演概要,平成21年度軽金属学会 第117回秋期大会
Nov. 2009

均等曲げにおける6063アルミニウム合金円管の変形挙動
高橋和仁; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成21年度軽金属学会 第117回秋期大会講演概要,平成21年度軽金属学会 第117回秋期大会
Nov. 2009

アルミニウム円管と穴あけリブの押出し接合におけるリブ材質の影響
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成21年度軽金属学会 第117回秋期大会講演概要,平成21年度軽金属学会 第117回秋期大会
Nov. 2009

厚板のV曲げにおける変形形状に及ぼす影響
KHAMT NARANBAATAR; 村田眞; 久保木孝; 柴田隆浩; 金英俊
Oral presentation, Japanese, 平成21年度 第60回塑性加工連合講演会講演論文集/(社)日本塑性加工学会,” 日本塑性加工学会，平成21年度 第60回塑性加工連合講演会
Nov. 2009

板材V曲げにおけるスプリングバックレス加工
柴田隆浩; 金英俊; 小山純一; 久保木孝; 村田眞
Oral presentation, Japanese, 平成21年度 第60回塑性加工連合講演会，講演論文集/日本塑性加工学会,平成21年度 第60回塑性加工連合講演会，講演論文集/日本塑性加工学会
Nov. 2009

薄肉管とリブの押出し接合における押出し比の影響
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 第60回塑性加工連合講演会 講演会論文集/日本塑性加工学会,平成21年度 第60回塑性加工連合講演会
Nov. 2009

板材の新しいせん断加工における切り口面について
路大涛; 田中彰典; 村田眞; 久保木孝; 金英俊
Oral presentation, Japanese, 平成21年度 第60回塑性加工連合講演会，講演会論文集/日本塑性加工学会,平成21年度 第60回塑性加工連合講演会
Nov. 2009

軸押力を付加した回転引曲げ加工における円管の肉厚変化が加工精度に与える影響
高橋和仁; 久保木孝; 村田眞; 矢野功造
Oral presentation, Japanese, 平成21年度 第60回塑性加工連合講演会，講演会論文集/日本塑性加工学会,平成21年度 第60回塑性加工連合講演会
Nov. 2009

円管の均等曲げ加工
村田眞
Oral presentation, Japanese, 日本鉄鋼協会，「材料とプロセス」，Vol.22，pp.1085(CDロム)．,日本鉄鋼協会，第158回秋季講演大会
Sep. 2009

5083厚板のV曲げにおける変形挙動
ハムタ・ナランバータル; 村田眞; 久保木孝; 柴田隆浩((アマダ; 金英俊(アマダ
Oral presentation, Japanese, 平成21年度軽金属学会 第116回春期大会講演概要/軽金属学会,平成21年度軽金属学会 第116回春期大会
May 2009

アルミニウム円管と穴あきリブの押出し接合において管肉厚が成形品形状
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 平成21年度軽金属学会 第116回春期大会講演概要/軽金属学会,平成21年度軽金属学会 第116回春期大会
May 2009

1100板の新しいせん断加工における厚さの影響
路大涛; 田中彰典; 金英俊(アマダ; 久保木孝; 村田眞
Oral presentation, Japanese, 平成21年度軽金属学会 第116回春期大会講演概要/軽金属学会,平成21年度軽金属学会 第116回春期大会
May 2009

線材の径が凹ロール伸線加工法に及ぼす影響～第2報～
仙崎泰慎; 久保木孝; 村田眞
Oral presentation, Japanese, 平成21年度 塑性加工春季講演会論文集/日本塑性加工学会,日本塑性加工学会，平成21年度 第40回 塑性加工春季講演会
May 2009

口絞り加工を施したアルミニウム円管の局所材料特性予測
小栗潤一; 村田眞; 久保木孝; 鶴田浩基(アマダ; 寺田賢二郎
Oral presentation, Japanese, 平成21年度 塑性加工春季講演会論文集/日本塑性加工学会,日本塑性加工学会，平成21年度 第40回 塑性加工春季講演会
May 2009

局部的な熱影響を受けた炭素鋼の残留応力解析
伊藤敬; 村田眞; 久保木孝; 金英俊(アマダ; 李若涛(アマダ
Oral presentation, Japanese, 平成21年度 塑性加工春季講演会論文集／日本塑性加工学会,日本塑性加工学会，平成21年度 第40回 塑性加工春季講演会
May 2009

鋼板の新しいせん断加工における工具クリアランスの影響
田中彰典; 路大涛; 村田眞; 久保木孝; 金英俊(アマダ
Oral presentation, Japanese, 平成21年度 塑性加工春季講演会論文集/日本塑性加工学会,日本塑性加工学会，平成21年度 第40回 塑性加工春季講演会
May 2009

バウシンガー効果を考慮した板曲げスプリングバック予測に関する研究
後藤慎太郎; 久保木孝; 村田眞; 金英俊(アマダ; 小俣均(アマダ; 石上圭介; 東
Oral presentation, Japanese, 平成21年度 塑性加工春季講演会論文集／日本塑性加工学会,日本塑性加工学会，平成21年度 第40回塑性加工春季講演会
May 2009

内面に溝を有する管材の口絞り加工
天野達也; 久保木孝; 村田眞
Oral presentation, Japanese, 平成21年度 塑性加工春季講演会論文集/日本塑性加工学会,日本塑性加工学会，平成21年度 第40回 塑性加工春季講演会
May 2009

曲げ荷重がボトミング加工の曲げ角度制度に及ぼす影響
柴田隆浩; 金英俊; 小山純一; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

L曲げ加工におけるパンチの軌跡の影響(第2報
金英俊; 小山純一; 今井 一成; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

アルミニウム円管と穴つきリブの押出し接合における管肉厚の影響
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

均等曲げによる円管の肉厚が断面変形に与える影響
高橋和仁; 牟田良輔; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

均等曲げによる円管の肉厚が断面変形に与える影響
高橋和仁; 牟田良輔; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

管材の肉厚が逃げ有りダイスを用いた口絞り加工に与える影響
小南敦嗣; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

しごきスピニング加工における極薄肉管の成形特性
高橋奈生人; 久保木孝; 村田眞; 松田清義; 三田和彦
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

鋼板の新しいせん断加工における板厚の影響
田中彰典; 村田眞; 久保木孝; 金英俊
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

据え込み加工における時効硬化の影響
楊陽; 久保木孝; 村田眞
Oral presentation, English, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

板材の張出し加工における応力-ひずみ曲線の予測
森川雄一; 小山純一; 金英俊; 尾形敦; 村田眞; 久保木孝
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

引張圧縮試験における圧縮時の座屈対策を施した試験片形状の影響-第2報
石上圭介; 久保木孝; 村田眞; 金英俊; 小俣均; 山谷泰司
Oral presentation, Japanese, 第59塑性加工連合講演会論文集／日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

炭酸ガスレーザ切断後の鋼板の特性
李涛若; 金英俊; 小山純一; 石黒宏明; 村田眞; 久保木孝
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

加工履歴を有するアルミニウム材の機械特性の予測法
鶴田浩基; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

綿材の径が凹型ロールを用いた伸線加工法に及ぼす影響
仙崎泰慎; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 第59回塑性加工連合講演会
Nov. 2008

管の矯正加工における断面形状の変化
山口洋平; 天野達也; 久保木孝; 村田眞; 山川富夫; 黒田浩一
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会2008/11.,平成20年度 第59回塑性加工連合講演会
Nov. 2008

1100アルミニウム板材の新しいせん断加工における板厚の影響
村田眞; 久保木孝; 田中彰典; 金英俊(アマダ
Oral presentation, Japanese, 第115回 秋期大会講演論文集/軽金属学会,平成20年度 第115回秋期大会，軽金属学会
Nov. 2008

円管の曲げ加工における軸押出し力によるへん平化の抑制 -曲げ半径の変化による軸押出し力の影響-
高橋和仁; 久保木孝; 村田眞; 小野数彦; 矢野巧造
Others, Japanese, 第13回共同研究成果報告会論文集， 国立大学法人電気通信大学 地域・産学官連携推進機構 産学官等連携推進本部 リエゾン部門(共同研究センター
Jun. 2008

1050アルミニウム円管と穴あきリブの押出し接合
諸井努; 久保木孝; 仙崎泰慎; 村田眞
Oral presentation, Japanese, 軽金属学会,平成20年度軽金属学会 第114回春期大会講演概要，2007.5.9-5.11
May 2008

新しいせん断加工による1100板材のせん断
村田眞; 久保木孝; 田中彰典; 金英俊(アマダ
Oral presentation, Japanese, 軽金属学会,平成20年度軽金属学会 第114回春期大会講演概要，2007.5.9-5.11
May 2008

板材の新しいせん断加工
村田眞; 久保木孝; 金英俊; 田中彰典
Oral presentation, Japanese, (社)日本塑性加工学会,平成20年度 塑性加工春季講演会2008.5.23-25
May 2008

引張圧縮試験における試験片形状の検討
石上圭介; 久保木孝; 村田眞; 金英俊; 小俣均; 山谷泰司
Oral presentation, Japanese, 日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25
May 2008

1050アルミニウムのリブ接合押出しにおける温度の影響
諸井努; 久保木孝; 仙崎泰慎; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25,
May 2008

逃げ有りダイスの接触面数がA1050円管の口絞りに与える影響
小南敦嗣; 大出佑亮; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25
May 2008

均等曲げによる管の断面変形に関する研究
田中彰典; 高橋和仁; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25
May 2008

回転引曲げ加工の軸押し力によるへん平化の抑制-曲げ半径の変化による軸押し力の影響－
高橋和仁; 紀頭航; 久保木孝; 村田眞; 小野数彦; 矢野巧造
Oral presentation, Japanese, 日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25
May 2008

凹ロールを用いたフリーサイズ伸線加工法の提案
久保木孝; 中村友彦; 菅原弘匡; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25
May 2008

L曲げ加工におけるパンチの軌跡の影響
金英俊; 小山純一; 今井一成; 久保木孝; 村田眞
Oral presentation, Japanese, 第59回塑性加工連合講演会論文集/日本塑性加工学会,平成20年度 塑性加工春季講演会，2008.5.23-25
May 2008

最近の塑性加工に関する動向-押出し加工とチューブフォーミング-
村田眞
Invited oral presentation, Japanese, 第16回アルミニウムシンポジウム, (社)高岡アルミニウム懇話会
Apr. 2008

最近3年間の押出し加工
諸井努; 村田眞
Oral presentation, Japanese, (社)軽金属学会 新しい押出加工の創成研究会,第5回新しい押出加工の創成研究会
Jan. 2008

逃げのある円錐ダイスを用いた管のスピニングに関する研究
村田眞; 久保木孝; 高橋和仁; 大出佑亮
Oral presentation, Japanese, 軽金属学会，平成19年度軽金属学会 第113回秋期大会講演概要，2007.11.10-11,軽金属学会 第113回秋期大会
Nov. 2007

押出加工を用いた管と板の接合加工
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, (社)日本塑性加工学会,第68回 接合・複合分科会
Nov. 2007

張出し加工における荷重線図を用いた応力-ひずみ曲線の予測
小山純一; 金英俊; 村田眞; 久保木孝; 森川雄一
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 第58回塑性加工連合講演会講演論文集，2007.10.26-28,第58回塑性加工連合講演会
Oct. 2007

リブ接合押出しの変形特性の数値解析
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 第58回塑性加工連合講演会講演論文集，2007.10.26-28,第58回塑性加工連合講演会
Oct. 2007

円管のプレス曲げにおける加工硬化指数の影響
村田眞; 久保木孝; 金英俊; モハマド・グダルディ
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 第58回塑性加工連合講演会講演論文集，2007.10.26-28,第58回塑性加工連合講演会
Oct. 2007

口絞り成型品の機械特性の予測方法
鶴田浩基; 久保木孝; 村田眞; 永瀬豊; 高部秀樹; 黒田浩一; 秋山雅義
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 第58回塑性加工連合講演会講演論文集，2007.10.26-28,第58回塑性加工連合講演会
Oct. 2007

オーバルダイスの形状が円管の回転口絞り加工における成形形状に及ぼす影響
大出佑亮; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 第58回塑性加工連合講演会講演論文集，2007.10.26-28,第58回塑性加工連合講演会
Oct. 2007

回転引曲げ加工の軸押し力が曲げ品質に与える影響
高橋和仁; 渡辺孝氏; 久保木孝; 村田眞; 小野数彦; 矢野巧造
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 第58回塑性加工連合講演会講演論文集，2007.10.26-28,第58回塑性加工連合講演会
Oct. 2007

リブ接合押出しにおいて，管肉厚がメタルフローに及ぼす影響
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, ”日本塑性加工学会，平成19年度 塑性加工春季講演会講演論文集，2007.5.25-27,塑性加工春季講演会
May 2007

スキンパス法による薄肉円管の残留応力低減
久保木孝; 山下弘高; 榊友広; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 塑性加工春季講演会講演論文集，2007.5.25-27,塑性加工春季講演会
May 2007

中炭素鋼のパーライト形態を考慮した時効進行の予測法に関する研究
楊 楊; 三宅章生; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 塑性加工春季講演会講演論文集，2007.5.25-27,塑性加工春季講演会
May 2007

円管の回転口絞り加工においてダイス形状が加工限界に及ぼす影響
大出佑亮; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 塑性加工春季講演会講演論文集，2007.5.25-27,塑性加工春季講演会
May 2007

打ち抜き加工による応力ひずみ曲線の予測
森川雄一; 金英俊; 小山純一; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 塑性加工春季講演会講演論文集，2007.5.25-27,塑性加工春季講演会
May 2007

数値解析を用いた逐次打点によるアングル材の面内曲げにおけるウェブ高さの影響
石上圭介; 金英俊; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成19年度 塑性加工春季講演会講演論文集，2007.5.25-27,塑性加工春季講演会
May 2007

逐次打点法によるアングル材の曲げ加工
金英俊; 山田拓央; 石上圭介; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成19年度軽金属学会 第112回春期大会講演概要，2007.5.10-5.12,軽金属学会 第112回春期大会
May 2007

矩形管の引張り曲げ加工
高橋和仁; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成19年度軽金属学会 第112回春期大会講演概要，2007.5.10-5.12,軽金属学会 第112回春期大会
May 2007

非円形テーパーダイスを用いた管の口絞り加工
大出佑亮; 村田眞; 久保木孝
Oral presentation, Japanese, 軽金属学会，平成19年度軽金属学会 第112回春期大会講演概要，2007.5.10-5.12,軽金属学会 第112回春期大会
May 2007

穴のあいたリブを有する円管の製作
諸井努; 高岡大和; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会,平成18年度 塑性加工春季講演会 講演論文集，2006.5.26-27
Oct. 2006

リブ接合押出し法においてマンドレル形状がメタルフローに及ぼす影響
諸井努; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成18年度 第57回塑性加工連合講演会論文集,日本塑性加工学会，平成18年度 第57回塑性加工連合講演会
Oct. 2006

回転口絞り加工において円管とダイスの接触面積が加工限界に及ぼす影響
大出佑亮; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成18年度 第57回塑性加工連合講演会論文集,日本塑性加工学会，平成18年度 第57回塑性加工連合講演会
Oct. 2006

ケブラー線とアルミニウムによる複合材料の機械的性質
植松俊一; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成18年度 第57回塑性加工連合講演会論文集，,日本塑性加工学会，平成18年度 第57回塑性加工連合講演会
Oct. 2006

ミクロ組織を考慮した中炭素鋼の冷間加工におけるひずみ時効進行を予測する方法の提案
三宅章生; 高田恵美; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，伸線技術分科会 第61回伸線技術分科会研究集会
Jun. 2006

ミクロ組織を考慮した中炭素鋼の冷間加工におけるひずみ時効進行を予測する方法の提案
三宅章生; 高田恵美; 久保木孝; 村田眞
Others, Japanese, 日本塑性加工学会，伸線技術分科会, 日本塑性加工学会，伸線技術分科会，第61回伸線技術分科会研究集会，第2番目の講演
Jun. 2006

円管のせん断曲げにおける材料特性の影響
グダラズィ・モハマド; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成18年度 塑性加工春季講演会 講演論文集
May 2006

非軸対称形ダイスを用いた円管の口絞り特性
大出佑亮; 木村靖彦; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成18年度 塑性加工春季講演会 講演論文集
May 2006

アルミニウムとステンレス線による複合材料の機械的性質
植松俊一; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会,平成18年度 塑性加工春季講演会 講演論文集，2006.5.26-27
May 2006

可変曲げ半径ダイスを用いた管材の引張り曲げの加工特性
高橋和仁; 松下亮介; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成18年度 塑性加工春季講演会 講演論文集，2006.5.26-27
May 2006

逐次打点曲げにおける曲げ半径の算出
金英峻; 村田眞; 久保木
Oral presentation, Japanese, 日本塑性加工学会,平成18年度 塑性加工春季講演会 講演論文集，2006.5.26-27
May 2006

押出形材の曲げ加工技術の最新動向
高橋和仁; 村田眞
Oral presentation, Japanese, 軽金属学会,第77回シンポジウム
Dec. 2005

円管のせん断曲げにおける肉厚の影響
グダラズィ・モハマド; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,第56回塑性加工連合講演会講演会
Nov. 2005

口絞りにおいて加工限界に及ぼす影響
久保木孝; 村田眞; 木村康彦
Oral presentation, Japanese, 日本塑性加工学会,第56回塑性加工連合講演会 講演論文集
Nov. 2005

逐次打点法によるアングル材の曲げにおけるウェブの高さの影響
山田拓央; 金英俊; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会,日本塑性加工学会，第56回塑性加工連合講演会
Nov. 2005

逐次打点法による平板面内曲げに及ぼすパンチの打撃角度の影響
金英俊; 山田拓央; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会,日本塑性加工学会，第56回塑性加工連合講演会
Nov. 2005

Simulation for Flat Hemming of Aluminum Sheet Meta
Murata Makoto; Takashi Kuboki
Keynote oral presentation, English, International Conference on Technology for Plasticity, International Conference on Technology for Plasticity, Verona,Italy, International conference
Oct. 2005

The Effect of Pushing Force on the Shear Bending Process of Circular Tubes
Mohammad Goodarzi; Takashi Kuboki; Makoto Murata
Keynote oral presentation, English, 8th International Conference on Technology for Plasticity, International Conference on Technology for Plasticity, Verona,Italy, International conference
Oct. 2005

非軸対称ダイスを用いた円管の口絞り加工
久保木孝; 村田眞; 木村康彦
Oral presentation, Japanese, 日本機械学会,日本機械学会，2005年度年次大会
Sep. 2005

Shear Bending Process of Circular Tubes
グダラズィ・モハマド; 村田眞; 久保木孝
Oral presentation, Japanese, 日本機械学会,日本機械学会，2005年度年次大会
Sep. 2005

管の引抜き加工における残留応力抑制法
榊友広; 久保木孝; 村田眞
Oral presentation, Japanese, 日本機械学会,日本機械学会，2005年度年次大会
Sep. 2005

棒線材の2ロール矯正加工
久保木孝; 村田眞; 佐々木哲也
Oral presentation, Japanese, 日本機械学会,日本機械学会，2005年度年次大会
Sep. 2005

有限要素解析による円管のMOS曲げ加工特性
村田眞; 高橋和仁; 久保木孝; 金英俊
Oral presentation, Japanese, 日本鉄鋼協会,日本鉄鋼協会 第150回秋季講演大会
Sep. 2005

テーパマンドレルを用いた変肉押出し加工の有限要素シミュレーション
牧山高大; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成17年度 塑性加工春季講演会
May 2005

円管のせん断曲げにおけるダイスのコーナー半径の影響
グダラズィ・モハマド; 松下陽亮; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会,平成17年度 塑性加工春季講演会講演会
May 2005

アングル材の逐次打点曲げにおける押込み量の影響
金英俊; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会,平成17年度 塑性加工春季講演会
May 2005

逐次打点法によるアングル材の曲げにおける打撃ピッチの影響
山田拓央; 金英俊; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会,平成17年度 塑性加工春季講演会
May 2005

共同研究に対する所感
村田眞
Others, Japanese, 日本塑性加工学会，塑性と加工(塑性加工学会誌)
Apr. 2005

逐次打点法による面内曲げに及ぼす平板の圧延方向の影響
金英俊; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成16年度軽金属学会 第107回秋期大会講演概要
Nov. 2004

数値解析による円管のせん断曲げ加工におけるひずみ分布
グダラズィ・モハマド; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成16年度軽金属学会 第107回秋期大会講演概要
Nov. 2004

面内逐次打点曲げ加工において平板材質が加工特性に及ぼす影響
金英俊; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 第55回塑性加工連合講演会講演論文集,2004.11.25-27
Nov. 2004

円管のせん断曲げ加工の数値シミュレーション(Finite Element Simulation of Tube Shear Bending Process
グダラズィ・モハマド; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 第55回塑性加工連合講演会講演論文集，2004.11.25-27
Nov. 2004

口絞りにおいて加工条件が応力に及ぼす影響
木村康彦; 村田眞; 久保木孝; 下田健
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 第55回塑性加工連合講演会講演論文集，2004.11.25-27
Nov. 2004

正方形管のスピニング加工における経路の影響
荒生ひとみ; 開俊介; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 第55回塑性加工連合講演会講演論文集，2004.11.25-27
Nov. 2004

テーパマンドレルとチョーク付きダイスを用いた円管の変肉厚押出し加工
牧山高大; 高岡大和; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 第55回塑性加工連合講演会講演論文集，2004.11.25-27
Nov. 2004

ミクロ組織を考慮した中炭素鋼のひずみ時効進行の予測法
三宅章生; 高田恵美; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 第55回塑性加工連合講演会講演論文集，2004.11.25-27
Nov. 2004

Effects of Taper Angle on Extrusion for Changing Wall Thickness of Tube with Tapered Mandrel
牧山高大; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会誌「塑性と加工」，社団法人 日本塑性加工学会
Sep. 2004

CNC Incremental Bending Machine
Yingjun.Jin; M.Murata
Keynote oral presentation, English, Proceedings of the First Asia International Symposim on Mechatronics (AISM 2004) , Xi’an China, International conference
Sep. 2004

高圧水を利用した鋼板の深絞り
村田眞; 久保木孝; 工藤寛之
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 塑性加工春季講演会講演論文集
May 2004

正方形管のスピニング加工特性
荒生ひとみ; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 塑性加工春季講演会講演論文集
May 2004

テーパ状のマンドレルを用いた円管の変肉厚押出し加工におけるダイス先端形状の影響
牧山高大; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 塑性加工春季講演会講演論文集
May 2004

平板の面内逐次打点曲げに及ぼすピッチの影響
金英俊; 村田眞; 久保木孝
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 塑性加工春季講演会講演論文集
May 2004

小さい曲げ半径での円管のせん断曲げ (Shear Bending of Circular Tubes on Small Bending Radius)
グダラズィ・モハマド; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成16年度 塑性加工春季講演会講演論文集
May 2004

マグネシウム円管の縮管スピニング加工
村田眞; 久保木孝
Oral presentation, Japanese, 軽金属学会，平成16年度軽金属学会 第106回春期大会講演概要
May 2004

逐次打点法による平板面内曲げに及ぼすパンチの角度の影響
金英俊; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成16年度軽金属学会 第106回春期大会講演概要，2004.5.28-5.30
May 2004

円管のせん断曲げ加工
グダラズィ・モハマド; 久保木孝; 木村康彦; 村田眞
Oral presentation, Japanese, 軽金属学会，平成16年度軽金属学会 第106回春期大会講演概要，2004.5.28-5.30
May 2004

スピニングによる正方形管の縮管加工
荒生ひとみ; 久保木孝; 村田眞
Oral presentation, Japanese, 軽金属学会，平成16年度軽金属学会 第106回春期大会講演概要，2004.5.28-5.30
May 2004

水を潤滑剤として用いた板材加工
村田眞; 宮本治彦
Others, Japanese, 日本塑性加工学会，第一回環境分科会 研究会前刷集
Mar. 2004

電気通信大学におけるへミング加工の実験・検討結果
村田眞
Others, Japanese, 経済産業省委託，財団法人 大阪科学技術センター付属ニューマテリアルセンター,自動車の軽量化に資する材料評価の標準化調査研究 自動車用アルミニウム合金板のへミング加工限界評価方法の標準化調査研究成果報告書
Mar. 2004

Characteristics of Circular Tube Bending by MOS Method
村田眞; 久保木孝; 金英俊
Oral presentation, Japanese, 日本鉄鋼協会講演論文集「材料とプロセス」/ 日本鉄鋼協会,平成16年度 第148回 日本鉄鋼協会講演大会
2004

Flexible CNC Bender of Tube and CAD for Bending
M.Murata; T.Kato
Invited oral presentation, English, Cold Rollforming Steel Technology & Equipment 2003 International Conference IN China, International conference
Dec. 2003

フレキシブルな円管のCNC曲げ加工機の開発
村田眞; 加藤忠郎
Others, Japanese, 日本塑性加工学会，プロセス・ドライボロジー分科会年間報告書（2002年度),2003.12,
Dec. 2003

Effects of indented feed of roller tool on parallel spinning of circular aluminum tube
姚建国; 村田眞
Others, English, Metallurgical Abstracts on Light Metals and Alloys
Dec. 2003

テーパ状のマンドレルを用いた円管の変肉厚押出し加工における ダイス形状の影響
牧山高大; 村田眞; 久保木孝
Oral presentation, Japanese, 第54回塑性加工連合講演会論文集/日本塑性加工学会,平成15年度 第54回塑性加工連合講演会講演会論文集
Nov. 2003

7平板の面内逐次打点曲げにおける押し込み量の影響
金英俊; 村田眞; 久保木孝
Oral presentation, Japanese, 第54回塑性加工連合講演会講演論文集/日本塑性加工学会,平成15年度 第54回塑性加工連合講演会
Nov. 2003

引張り曲げ加工における断面形状の変化
高橋和仁; 松下陽亮; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成18年度 第57回塑性加工連合講演会論文集，,日本塑性加工学会 平成18年度 第57回塑性加工連合講演会
Nov. 2003

Newest Flexible CNC Tube Bender and CAD for Bending
M.Murata; T.Kato
Keynote oral presentation, English, International Tube Association Conference,Asia Pacific Tube 2003, International conference
Sep. 2003

New Flexible CNC Bender for Tube and CAD
M.Murata; T.Kato
Invited oral presentation, English, 釜山国際機械技術大展 「最新精密機械技術の世界動向および活用」， 韓国機械学会特別セミナー, International conference
May 2003

Recent Tube Forming Situation in Japan
M.Murata
Invited oral presentation, English, The Korean Society of Manufacturing Process Engineers, Proceeding of the KSMPE Conference 2003.05/17, International conference
May 2003

テーパ状のマンドレルを用いたA6063合金の可変肉厚押出加工におけるテーパ角の影響
牧山高大; 村田眞
Oral presentation, Japanese, 平成14年度軽金属学会第104回春期大会講演概要/軽金属学会,平成14年度軽金属学会 第104回春期大会概要
May 2003

逐次打点法による平板の面内曲げにおむける平板の厚さの影響
金英俊; 村田眞
Oral presentation, Japanese, 軽金属学会学会誌 第104回春期大会講演概要/軽金属学会,平成14年度軽金属学会第104回春期大会
May 2003

熱間ローラによるマグネシウム合金管材のスピニング加工における加工力
横田靖央; 村田眞
Oral presentation, Japanese, 軽金属学会，平成14年度軽金属学会第104回春期大会講演概要，2003.5.17-5.18
May 2003

高圧水を利用した冷延鋼板による深絞り加工
工藤寛之; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成15年度 塑性加工春季講演会講演論文集，2003.5.23-25
May 2003

テーパ状のマンドレルを用いた変肉厚押出し加工におけるマンドレル直径の影響
牧山高大; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成15年度 塑性加工春季講演会講演論文集，2003.5.23-25
May 2003

テーパ状のマンドレルを用いた変肉厚押出し加工におけるマンドレル直径の影響
牧山高大; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成15年度 塑性加工春季講演会講演論文集，2003.5.23-25,平成15年度 塑性加工春季講演会
May 2003

熱間ローラによるマグネシウム合金管材のスピニングにおける加工 限界
横田靖央; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成15年度 塑性加工春季講演会講演論文集，2003.5.23-25
May 2003

熱間ローラによるマグネシウム合金管材のスピニングにおける加工 限界
横田靖央; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成15年度 塑性加工春季講演会講演論文集，2003.5.23-25,平成15年度 塑性加工春季講演会
May 2003

平板の面内逐次打点曲げにおける打撃角度の影響
金英俊; 久保木孝; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成15年度 塑性加工春季講演会講演論文集，2003.5.23-25
May 2003

Kindly Deep Drawing for Environment using High-Pressured Water
M.Murata
Keynote oral presentation, English, The 6th India-Japan Joint Seminar 2002, Advanced Manufacturing Systems , Proceeding of The 6th India-Japan Joint Seminar 2002. 12.1-6 Mussorie, India, International conference
Dec. 2002

異なる加工経路による円管端部のテーパスピニング加工
姚建国; 村田眞; 荒生ひとみ
Oral presentation, Japanese, 平成14年度 軽金属学会 第103回秋期大会講演概要， 2002.11.15-11.17.
Nov. 2002

管端のテーパスピニング加工における送りピッチの影響
尾関宏紀; 村田眞; 横田靖央
Oral presentation, Japanese, 日本塑性加工学会，平成14年度 第53回塑性加工連合講演会講演論文集，2002.11.22-24.
Nov. 2002

円管端部のテーパスピニング加工における加工経路の影響
姚建国; 村田眞; 荒生ひとみ
Oral presentation, Japanese, ”，日本塑性加工学会，平成14年度 第53回塑性加工連合講演会講演論文集， 2002.11.22-24,
Nov. 2002

平板の面内打点曲げにおける平板の幅の影響
金英俊; 村田眞
Oral presentation, Japanese, 日本塑性加工学会，平成14年度 第53回塑性加工連合講演会講演論文集， 2002.11.22-24.
Nov. 2002

繰返しアイオニング加工による円管の内側正方形断面加工
北川誠吾; 村田眞
Oral presentation, Japanese, 日本塑性加工学会 平成14年度 第53回塑性加工連合講演会講演論文集 2002.11.22-24.
Nov. 2002

一部加熱による正方形管の回転引き曲げ加工に関する研究
大林匡規; 村田眞; 高橋和仁
Oral presentation, Japanese, 日本塑性加工学会，平成14年度 第53回塑性加工連合講演会講演論文集， 2002.11.22-24.
Nov. 2002

テーパ形状のマンドレルを用いた変肉押出加工
牧山高大; 村田眞
Oral presentation, Japanese, 第102回春期大会講演概要/軽金属学会,平成14年度 軽金属学会 第102回春期大会
May 2002

円管端部のテーパスピニング加工
姚建国; 村田眞
Oral presentation, Japanese, 第102回春期大会講演概要/軽金属学会,平成14年度 軽金属学会 第102回春期大会
May 2002

逐次打点法による平板の面内加工に及ぼす打点数の影響
金英俊; 村田眞
Oral presentation, Japanese, 平成14年度 軽金属学会 第102回春期大会講演概要/軽金属学会,平成14年度 軽金属学会 第102回春期大会講演会
May 2002

第1回ドライ加工研究会資料
村田眞
Public symposium, Japanese, 第1回ドライ加工研究会, ドライ加工研究会，2002.5.22，社団法人東京都金属プレス工業会
May 2002

高圧水を用いたアルミニウム板の深絞り加工
村田眞; 工藤寛之
Oral presentation, Japanese, 塑性加工春季講演会講演論文集/日本塑性加工学会,平成14年度 塑性加工春季講演会
May 2002

円管の内側断面を正方形にするアイオニング加工の特性
村田眞; 北川誠吾
Oral presentation, Japanese, 塑性加工春季講演会講演論文集/塑性加工学会,成14年度 塑性加工春季講演会
May 2002

アルミニウム円管の熱間スピニング加工
尾関宏紀; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会講演論文集/塑性加工学会,平成14年度 塑性加工春季講演会
May 2002

板材のスピニング加工におけるローラクリアランスとフランジ長さの加工力への影響
柳康太郎; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会講演論文集/塑性加工学会,平成14年度 塑性加工春季講演会
May 2002

管端のテーパスピニング加工における送りピッチの影響
姚建国; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会講演論文集/塑性加工学会,平成14年度 塑性加工春季講演会
May 2002

平板の面内打点曲げに及ぼす打点数の影響,
金英俊; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会論文集/塑性加工学会，,平成14年度 塑性加工春季講演会講演会
May 2002

押出しによる円管の変肉厚加工
牧山高大; 村田眞
Oral presentation, Japanese, 塑性加工春季講演会講演論文集/塑性加工学会,平成14年度 塑性加工春季講演会
May 2002

加熱ローラを用いた6063アルミニウム合金円管のスピニング加工
尾関宏紀; 村田眞
Oral presentation, Japanese, 軽金属学会第102回春期大会講演概要，/軽金属学会,平成14年度 軽金属学会 第102回春期大会講
May 2002

アルミニウム円管のアイオニング加工
村田眞; 北川誠吾
Others, Japanese, 第99回研究例会, 日本塑性加工学会チューブフォーミング分科会
Mar. 2002

円管の曲げ加工
村田眞
Oral presentation, Japanese, 第143回春季講演大会日本鉄鋼協会講演論文集“材料とプロセス”/日本鉄鋼協会,第143回春季講演大会
Mar. 2002

最近のチューブフォーミング技術－管材のMOS曲げ加工－
村田眞
Others, Japanese, 日本塑性加工学会 東海支部 新進部会,第14回 討論会, 日本塑性加工学会
Feb. 2002

アイオニング加工における内側断面の正方形加工
村田眞; 北川誠吾
Oral presentation, Japanese, 第52回 塑性加工連合講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
Oct. 2001

自動車トランクを想定したヘミング加工のシミュレーション
柳俊虎; 田中清志; 村田
Oral presentation, Japanese, 第52回 塑性加工連合講演会講演論文集/日本塑性加工学会,第52回 塑性加工連合講演会
Oct. 2001

テーパ形状を有するマンドレルを用いて内径を変化させた円管の押出し加工
牧山高大; 村田眞
Oral presentation, Japanese, 第52回 塑性加工連合講演会講演論文集/日本塑性加工学会,第52回 塑性加工連合講演会
Oct. 2001

表面処理を施した板材の水圧潤滑による深絞り加工
村田眞; 宮本治彦
Oral presentation, Japanese, 第52回 塑性加工連合講演会/日本塑性加工学会,第52回 塑性加工連合講演会講演論文集
Oct. 2001

端部平行スピニング加工におけるローラ送りピッチの影響
姚建国; 村田眞
Oral presentation, Japanese, 第52回 塑性加工連合講演会講演論文集/日本塑性加工学会,第52回 塑性加工連合講演会
Oct. 2001

板材スピニングにおける加工力の検討
柳康太郎; 村田眞
Oral presentation, Japanese, 第52回 塑性加工連合講演会講演論文集/日本塑性加工学会,第52回 塑性加工連合講演会
Oct. 2001

円管の平行スピニング加工におけるローラ送り経路の影響
姚建国; 村田眞
Oral presentation, Japanese, 平成13年度軽金属学会春期大会(第100回春期大会)講演概要/軽金属学会,平成13年度 軽金属学会春期大会(第100回春期大会)
May 2001

円管のテーパスピニングにおける回転速度の影響
村田眞; 齋藤陵; 最川亮
Oral presentation, Japanese, 平成13年度 軽金属学会春期大会(第100回春期大会)講演概要/軽金属学会,平成13年度 軽金属学会春期大会(第100回春期大会)
May 2001

板材の凸形状ヘミングのシミュレーション
村田眞; 柳俊虎; 田中清志
Oral presentation, Japanese, 平成13年度 春期大会(第100回春期大会)講演概要/軽金属学会,平成13年度 軽金属学会春期大会(第100回春期大会)
May 2001

板材の円錐台形状へのスピニングにおける押付け角の影響
柳 康太郎; 村田眞; 小原直浩
Oral presentation, Japanese, 平成13年度軽金属学会春期大会(第100回春期大会)講演概要/ 軽金属学会,平成13年度 軽金属学会春期大会(第100回春期大会)
May 2001

板材の凸形状ヘミングのシミュレーション
村田眞; 柳俊虎; 田中清志
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

水圧潤滑による深絞り加工における潤滑用ノズル位置の影響
村田眞; 宮本治彦
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

円管のアイオニング加工におけるシミュレーション
村田眞; 三木博敬; 佐藤昭一
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

テーパ形状を有するマンドレルを用い肉厚を変化させた円管の押出し加工
牧山高大; 村田眞
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

円管のテーパ形状スピニングにおけるピッチの影響
村田眞; 齋藤陵; 最川亮
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

板材の円錐台形状へのスピニング加工におけるピッチの影響
柳 康太郎; 村田眞; 小原直浩
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

円管の平行スピニング加工における押込み量の影響
姚建国; 村田眞
Oral presentation, Japanese, 平成13年度 塑性加工春季講演会講演論文集/日本塑性加工学会,平成13年度 塑性加工春季講演会
May 2001

フレキシブル三次元曲げ加工機の開発
村田 眞
Oral presentation, Japanese, 2001年度精密工学会春季大会シンポジウム資料/精密工学会,2001年度精密工学会春季大会シンポジウム
Mar. 2001

水を活用する未踏加工技術・加工システム
村田眞
Others, Japanese, 財団法人 製造科学技術センター エミッションフリー・マニュファクチャリング成果報告会,エミッションフリー・マニュファクチャリング成果報告書集
Mar. 2001

円管の平行スピニング加工におけるピッチの影響
姚 建国; 村田 眞; 高橋和仁
Oral presentation, Japanese, 平成12年度軽金属学会秋期大会講演概要/軽金属学会,平成12年度軽金属学会秋期大会
Nov. 2000

板材の円錐台形状へのスピニングにおける送り速度の影響
小原直浩; 村田 眞; 柳 康太郎
Oral presentation, Japanese, 平成12年度軽金属学会秋期大会講演概要/軽金属学会,平成12年度軽金属学会秋期大会
Nov. 2000

板材の円錐台形状へのスピニング加工
小原直浩; 村田 眞; 柳 康太郎
Oral presentation, Japanese, 第51回塑性加工連合講演講演論文集/日本塑性加工学会,第51回塑性加工連合講演講演会
Nov. 2000

円管のスピニング加工における回転数の影響
姚 建国; 村田 眞; 高橋和仁
Oral presentation, Japanese, 第51回塑性加工連合講演講演論文集/日本塑性加工学会,第51回塑性加工連合講演講演会
Nov. 2000

アルミニウム円管のアイオニングにおける加工条件の影響
村田 眞; 三木博敬
Oral presentation, Japanese, 第51回塑性加工連合講演講演論文集／日本塑性加工学会,第51回塑性加工連合講演講演会
Nov. 2000

高圧の水と洗剤を併用した深絞り加工"
村田 眞; 宮本治彦
Oral presentation, Japanese, 第51回塑性加工連合講演講演論文集/日本塑性加工学会,第51回塑性加工連合講演講演会
Nov. 2000

数値シュミレーションによる板材のヘミング加工におけるフランジ高さの影響
村田 眞; 秦 巍
Oral presentation, Japanese, 平成12年度軽金属学会春期大会講演概要/軽金属学会,平成12年度軽金属学会春期大会
May 2000

高圧の水を用いた深絞り加工における吹き出し位置の影響
村田 眞; 小林 豊
Oral presentation, Japanese, 平成12年度軽金属学会春期大会講演概要/軽金属学会,平成12年度軽金属学会春期大会
May 2000

円管のアイオニング加工におけるダイス角の影響
三木博敬; 村田 眞; 佐藤昭一
Oral presentation, Japanese, 平成12年度軽金属学会春期大会講演概要/軽金属学会,平成12年度軽金属学会春期大会
May 2000

高圧の水を潤滑剤とした深絞り加工法における排出穴の数による影響
村田 眞; 小林 豊
Oral presentation, Japanese, 平成12年度塑性加工春季講演会（講演論文集）/日本塑性加工学会, 2000.5.26-28,平成12年度塑性加工春季講演会
May 2000

板材のヘミング加工におけるフランジ円弧形状の影響
村田 眞; 秦 巍
Oral presentation, Japanese, 平成12年度塑性加工春季講演会（講演論文集）/日本塑性加工学会, 2000.5.26-28,平成12年度塑性加工春季講演会
May 2000

円管のアイオニング加工における縮管量の影響
村田 眞; 佐藤昭一; 三木博敬
Oral presentation, Japanese, 平成12年度塑性加工春季講演会（講演論文集）/日本塑性加工学会, 2000.5.26-28,平成12年度塑性加工春季講演会
May 2000

肉厚を変化させる円管の抽出加工
秋山高大; 村田 眞; 長谷川幸嗣
Oral presentation, Japanese, 平成12年度塑性加工春季講演会（講演論文集）/日本塑性加工学会, 2000.5.26-28,平成12年度塑性加工春季講演会
May 2000

円管のテーパスピニング加工における材質の差による影響
斉藤 陵; 村田 眞
Oral presentation, Japanese, 平成12年度塑性加工春季講演会（講演論文集）/日本塑性加工学会, 2000.5.26-28,平成12年度塑性加工春季講演会
May 2000

円管のスピニングにおける軸力の影響
村田 眞; 牟田玲子; 小林大地
Oral presentation, Japanese, 平成12年度塑性加工春季講演会（講演論文集）/日本塑性加工学会, 2000.5.26-28,平成12年度塑性加工春季講演会
May 2000

円管のためのフレキシブルな加工法
村田 眞
Public symposium, Japanese, 第190回塑性加工シンポジウム, 日本塑性加工学会論文誌
Feb. 2000

円管のスピニング加工における肉厚が加工力に及ぼす影響
村田 眞; 牟田玲子
Oral presentation, Japanese, 軽金属学会第96回春期大会講演概要/軽金属学会,軽金属学会第96回春期大会
Nov. 1999

テーパ状のマンドレルを用いた円管の押出加工
長谷川幸嗣; 村田 眞
Oral presentation, Japanese, 軽金属学会第96回春期大会講演概要/軽金属学会,軽金属学会第96回春期大会
Nov. 1999

肉厚が変化する円管の押出加工
長谷川幸嗣; 村田 眞; 牧山高大
Oral presentation, Japanese, 第50回塑性加工連合講演会講演論文集/日本塑性加工学会,第50回塑性加工連合講演会
Oct. 1999

円管のテーパスピニング加工による加工方向の影響
村田 眞; 牟田玲子; 石丸 直
Oral presentation, Japanese, 第50回日本加工連合講演会講演論文集/日本塑性加工学会,第50回日本加工連合講演会
Oct. 1999

フレキシブルな管材のMOS曲げ加工機
村田 眞
Others, Japanese, 精密工学会生産自動化専門委員会,生産自動化専門委員会特別研究例会講演前刷集
Oct. 1999

断面を変化させる押出加工
長谷川幸嗣; 村田 眞; 牧山高大
Others, Japanese, 精密工学会生産自動化専門委員会特別研究例会講演前刷集,特別研究例会講演前刷集
Oct. 1999

円管加工のフレキシブルな加工機の開発
村田 眞
Others, Japanese, 第17回金属プレス加工技術研究会, 社団法人金属プレス工業協会
Jul. 1999

MOS曲げ加工を用いた正方形管の曲げ加工シミュレーション
村田 眞; 望月隆史
Oral presentation, Japanese, 平成11年度塑性加工春季講演会（講演論文集）/日本塑性加工学会,平成11年度塑性加工連合講演会論文集/日本塑性加工学会
May 1999

スピニングによる円管の縮管加工
村田 眞; 牟田玲子; 三木博敬
Oral presentation, Japanese, 平成11年度塑性加工春季講演会（講演論文集）/日本塑性加工学会,平成11年度塑性加工春季講演会
May 1999

円管のテーパスピニング加工
斎藤 陵; 村田 眞; 秦 魏
Oral presentation, Japanese, 平成11年度塑性加工春季講演会（講演論文集）/日本塑性加工学会,平成11年度塑性加工春季講演会
May 1999

テーパ形状を有するマンドレルを用いた円管の押出加工
長谷川幸嗣; 村田 眞; 野本雄一
Oral presentation, Japanese, 平成11年度塑性加工春季講演会（講演論文集）/日本塑性加工学会,平成11年度塑性加工春季講演会
May 1999

スピニングを用いた円管の縮管加工における管端拘束条件の影響
村田 眞; 三木博敬; 牟田玲子
Oral presentation, Japanese, 軽金属学会第96回春期大会講演概要/軽金属学会,軽金属学会第96回春期大会
May 1999

凹形スピニング加工における円柱工具と円盤工具による相違
村田 眞; 村中正則; 五味英語一郎
Oral presentation, Japanese, 軽金属学会第96回春期大会講演概要/軽金属学会,軽金属学会第96回春期大会
1999

高温深絞り加工における板厚の影響
村田 眞; 今井智道; 小原直浩
Oral presentation, Japanese, 軽金属学会第96回春期大会講演概要/軽金属学会,軽金属学会第96回春期大会
1999

押通し曲げ（MOS曲げ）における加工特性
村田 眞
Others, Japanese, 軽金属学会研究委員会（6061, 6063 アルミニウム合金押出経済の曲げ加工における精度と限界）, 軽金属学会
1999

正方形管のMOS曲げ加工における加工精度
村田 眞; 望月隆史
Oral presentation, Japanese, 平成10年度塑性加工連合講演会論文集/日本塑性加工学会,平成10年度塑性加工連合講演会
Oct. 1998

軸圧縮力を負荷した凹形スピニング加工
村田 眞; 根岸秀明; 村中正則; 牟田玲子; 秦 魏
Oral presentation, Japanese, 平成10年度塑性加工連合講演会論文集/日本塑性加工学会,平成10年度塑性加工連合講演会
Oct. 1998

ヘミングのための縮みフランジ加工
村田 眞; 名田卓生
Oral presentation, Japanese, 平成10年度塑性加工連合講演会論文集/日本塑性加工学会,平成10年度塑性加工連合講演会
Oct. 1998

スピニング加工における円管の加工形状制御
村田 眞; 牟田玲子
Others, Japanese, チューブフォーミング分科会講演会, 日本塑性加工学会
May 1998

A1050アルミニウム合金の高温深絞り加工
村田 眞; 今井智道
Oral presentation, Japanese, 第94回春期大会講演概要/軽金属学会,軽金属学会第94回春期大会
May 1998

管材のCNC曲げ加工機の開発
村田 眞
Keynote oral presentation, Japanese, 第1回生産学術連合会議，先端技術, 生産学術連合会, Domestic conference
1998

日本機械学会

日本塑性加工学会

TUBE & PIPE ASSOCIATION INTERNATIONAL

文部科学省 科学技術政策研究所

軽金属学会

Effect of Thickness on Accuracy of Tube Spinning
2001 - 2001

Highly Improved Function and Productivity with the MOS CNC Tube Bender
1999 - 1999

Effects of Various Working Conditions on Tube Bulging by Electrode Contact Method
1998 - 1998

Development of Bending Radius and Angle Control Rotary Bending System for Sheet Metal
1998 - 1998

Analysis of Circular Tube Bending by MOS Bending Method
1997 - 1997

Hem-Joining of Dissimilar Metal Tubes
1997 - 1997

Thin Sheet Metal Punching by Electromagnetic Pressure Using Electrode Contact Method
1996 - 1996

Effects of Inclination of Die and Material of Circular Tube in MOS Bending Method
1996 - 1996

Effect of die profile and aluminum circular tube thickness with MOS bending
1996 - 1996

Contraction Tube Using CNC Prototype Spinning Machine
1996 - 1996