wang zhigang

J-GLOBAL         Last updated: Jul 2, 2019 at 02:42
 
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Name
wang zhigang
Affiliation
Gifu University
Section
Faculty of Engineering Department of Mechanical Engineering

Profile

Process tribology/Development of friction test for metal forming processes/Die design/Optimum design for tool life/Cold forging/Development of plate forging processes

Research Areas

 
 

Published Papers

 
Wenzheng Dong, Wenzheng Dong, Ling Xu, Qiquan Lin, Zhigang Wang
International Journal of Advanced Manufacturing Technology   88 1101-1109   Jan 2017
© 2016, Springer-Verlag London.During the sheet metal forming, one of the major causes for die failure is transfer and accumulation of adhered material to the die surface, generally referred to as galling behavior. In the present work, the galling...
Yuki Koumura, Zhigang Wang
MATEC Web of Conferences   45    Mar 2016
© Owned by the authors, published by EDP Sciences, 2016.A novel method is described to calculate the forming load in V-bending by a press brake. The data of forming load are collected by FEM analysis. With an increase of the punch stroke in V-bend...
Tomonori Sasa, Zhigang Wang, Takashi Soga
MATEC Web of Conferences   45    Mar 2016
© Owned by the authors, published by EDP Sciences, 2016.Surface quality of nuts used in gas pipe joints is an important issue because the surface state affects the fatigue characteristics. Surface defects of nuts produced by warm forging from a st...
Z. G. Wang, K. Hirasawa, Y. Yoshikawa, K. Osakada
CIRP Annals - Manufacturing Technology   65 293-296   Jan 2016
© 2016 CIRPA forging process is proposed to form light-weight gear wheels for the valve timing system of engine. The cross-sectional shape of the gear has a hollow space at the back of each tooth to reduce the weight by maintaining the rigidity. F...
Zhigang Wang, Shinobu Komiyama
60 Excellent Inventions in Metal Forming   343-348   Jan 2015
© Springer-Verlag Berlin Heidelberg 2015.A non-reactive cold forging coating, named as dry in-place coating, is developed to replace zinc phosphate coating for cold forging operations. This new coating is formed by dipping the billet into liquid l...
Z. G. Wang, S. Komiyama, Y. Yoshikawa, T. Suzuki, K. Osakada
CIRP Annals - Manufacturing Technology   64 285-288   Jan 2015
© 2015 CIRP.The performance of lubrication coatings developed for replacing zinc phosphate conversion coating in multi-stage cold forging is evaluated with a newly devised testing method. In this test, the coated film on the side surface of the bi...
Wenzheng Dong, Qiquan Lin, Zhigang Wang
Cailiao Kexue yu Gongyi/Material Science and Technology   23 35-38   Jan 2015
©, 2015, Harbin Institute of Technology. All right reserved.To determine the galling mechanism in HSS sheet metal forming, the macro-galling behaviors in square cup drawing process were assessed by combining with FEM and experiments. In this paper...
Tomohiro Yamada, Zhi Gang Wang, Takuya Fukao
Advanced Materials Research   853 460-465   Jan 2014
Finish blanking is one of the precision shearing processes and it has some features such as the formability of a high ratio of the burnished surface, lower surface expansion ratio of the burnished surface. The purpose of the present work is to cla...
Qi Quan Lin, Wen Zheng Dong, Zhi Gang Wang, Katsuyoshi Hirasawa
Transactions of Nonferrous Metals Society of China (English Edition)   24 2387-2392   Jan 2014
Flange height and lip accuracy are generally restricted by the formability of sheet metals in the conventional hole-flanging operation. A new hole-flanging process, named upsetting-flanging process, was proposed to obtain a more substantial flange...
Z. G. Wang, Y. Yoshikawa, T. Suzuki, K. Osakada
CIRP Annals - Manufacturing Technology   63 277-280   Jan 2014
Frictional behaviour in dry metal forming is studied with a developed tribometer using aluminium specimens and a DLC coated tool. The ratio of flattened area by smooth tool surface starts to increase sharply after the occurrence of bulk plastic de...
Zhi Gang Wang, Shinobu Komiyama, Yasuharu Yoshikawa
Advanced Materials Research   966-967 281-289   Jan 2014
A new upsetting-extrusion type tribometer is developed to investigate the performance of a lubrication coating on the side surface of a billet in multi-stage cold forging. In this tribometer, the lubrication coating on the billet surface is first ...
Zhigang Wang, Yasuharu Yoshikawa
Procedia Engineering   81 389-394   Jan 2014
© 2014 The Authors. Published by Elsevier Ltd.A new forming technique to produce a cup with an upper and lower hollow boss by plate forging is proposed. In this process, the sheet metal is worked into a drawn cup by the deep drawing process and th...
Tomohiro Yamada, Zhigang Wang, Tomonori Sasa
Procedia Engineering   81 1817-1822   Jan 2014
© 2014 The Authors. Published by Elsevier Ltd.The purpose of the present work is to clarify the effect of the tool shape in finish blanking on galling behavior. A high-tensilestrength- steel plate with a thickness of 6mm is used in the present pap...
Qiquan Lin, Wenzheng Dong, Yantao Li, Hui Zhang, Zhigang Wang
Procedia Engineering   81 1259-1264   Jan 2014
© 2014 The Authors. Published by Elsevier Ltd.In this work, the microstructure evolution of 2519 aluminum alloy was studied at elevated temperatures by the isothermal interrupted hot compression tests on the Gleeble 1500. A static recrystallizatio...
Wen Zheng Dong, Qi Quan Lin, Tao Jiang, Zhi Gang Wang
Applied Mechanics and Materials   457-458 152-155   Jan 2014
The sintering behavior and the resulting of cermet are influenced not only by the characteristics and impurities of the raw materials but also are found to be dependent on the thermal history during the fabrication process. Our work is concerned w...
Wenzheng Dong, Qiquan Lin, Yantao Li, Zhigang Wang
Procedia Engineering   81 383-388   Jan 2014
© 2014 The Authors. Published by Elsevier Ltd.In plate forging process, one of the major causes for dimple defect is large processing load with the nonuniform material flows of local plastic deformation. In the present work, a new solid boss formi...
Tatsuhiro Suzuki, Zhigang Wang, Yasuharu Yoshikawa
Procedia Engineering   81 1872-1877   Jan 2014
© 2014 The Authors. Published by Elsevier Ltd.The friction behavior in dry metal forming is studied with a new tribometer. From the microscopic observation, it is found that the ratio of the flattened area starts to increase sharply when plastic d...
Zhigang Wang, Mingxu Yang, Yasuharu Yoshikawa
Procedia Engineering   81 1830-1835   Jan 2014
© 2014 The Authors. Published by Elsevier Ltd.A new method for predicting the position of the galling generation in square cup drawing is proposed based on the fact that galling at a drawn cup occurs at the position subjected to the maximum temper...
Z. G. Wang, Y. Yoshikawa, K. Osakada
CIRP Annals - Manufacturing Technology   62(1) 291-294   Apr 2013
A new process for forming bosses on the bottom of a cup made by deep drawing is proposed: solid bosses are formed by compression of the cup bottom during deep drawing. By the combined effect of compression and deep drawing, bosses are formed with ...
Mingxu Yang, Zhigang Wang, Yasuharu Yoshikawa, Shunsuke Ando
AIP Conference Proceedings   1532 1146-1150   Jun 2013
The tribological feature of the square cup drawing test is analyzed by using FEM simulation. The factors that are considered to affect the galling behavior, such as contact pressure, sliding distance and temperature, are investigated. No striking ...

Misc

 
Nozomu Kawai, Kuniaki Dohda, Masami Saitoh, Nobukazu Hayashi, Zhrgang Wang
Transactions of the Japan Society of Mechanical Engineers Series C   55 2885-2891
The object of this paper is to clarify the surface flattening mechanism in the drawing-ironing process based on the lubricating mechanism. A new experimental apparatus for the drawing-ironing process was made and experiments on ironing were carrie...
Nozomu Kawai, Kuniaki Dohda, Kazuhiro Akiyama, Zhrgang Wang
Transactions of the Japan Society of Mechanical Engineers Series C   55 2493-2498
The object of this paper is to clarify the mechanism of mirror surface finishing by the ironing process. The mirror surface is needed for electrooptical parts such as optical drums, magnetic discs, etc., which are currently being finished by diamo...

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2009 - 2011    Investigator(s): Zhigang WANG
The prediction method of die stress at the starting point of fatigue crack by the cold forging load has been developed by using the measured die strain generated by forging load. The calculated die stress by FEM simulation shows a good agreement w...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2007 - 2008    Investigator(s): Zhigang WANG
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Project Year: 2012 - 2014
Japan Society for the Promotion of Science: Grants-in-Aid for Scientific Research
Project Year: 2012 - 2014

Patents

 
5737657 : FOLDINGMETHODANDFOLDINGSYSTEMUSINGPRESSBRAKE
WANGZHIGANG