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Surface topography evolvement of galvanized steels in sheet metal forming HOU Ying-ke(侯英岢)1, YU Zhong-qi(于忠奇)1, ZHANG Wei-gang(张卫刚)1, JIANG Hao-min(蒋浩民)2, LIN Zhong-qin(林忠钦)1 1... tests were performed to investigate the surface topography evolvement of hot-dip galvanized(GI) and galvannealed(GA) steels and the effects of die hardness on sheet metal forming(SMF). Experimental......
J. Cent. South Univ. Technol. (2008) 15: 581-587 DOI: 10.1007/s11771-008-0109-5 Numerical simulation and experimental investigation of incremental sheet forming process HAN Fei(韩 飞), MO Jian... sheet forming (ISF) through both experimental and numerical approaches, a three-dimensional elasto-plastic finite element model (FEM) was developed to simulate the process and the simulated results were......
EXPERIMENTAL TESTING OF DRAW-BEAD RESTRAINING FORCE IN SHEET METAL FORMING J.H.Yang1,X.Y.Ruan1,D.N.He1,J.Chen1 (1.Department of Plasticity Forming Engineering, Shanghai Jiao Tong University, Shanghai 200030, China) Abstract:Due to complexities of draw-bead restraining force calculated according to theory anddepending on sheet metal forming properties experiment testing system......
for the calculation of the instable eigen values were deduced. The forming limit diagrams of the nickel coating on the right region were plotted. It is exhibited that the forming limit of the coating sheet... of the coating sheet tends to diminish with the increase of thickness of the coating. The greater the normal anisotropic coefficient of the materials is, the better the forming limit is. Key words......
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STUDY ON THE FINITE ELEMENT NUMERICAL SIMULATION OF SHEET METAL FORMING J.L.Song1,D.J.Hu1,Z.B.Jiang2,Z.L.Chang2,T.Y.Li2 (1.School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai... plastic simulation on sheet metal forming were technologically studied and simplified; a simplified model of the blank holder during the drawing process was established and the effects of related......
Evaluation of forming limit in viscous pressure forming of automotive aluminum alloy 6k21-T4 sheet WANG Zhong-jin(王忠金)1, LI Yi(李 毅)1, LIU Jian-guang(刘建光)1, ZHANG Yi-he(张义和)2 1. School... initiation site and the minimal thickness predicted by the ductile fracture criterion are in good agreement with the experimental results. Key words: aluminum alloy sheet; viscous pressure forming......
and the traces caused by bad exhaust disappears gradually, and surface roughness decreases simultaneously in electromagnetic bulging experiments.Key words:sheet; micro-forming; micro bulging...Micro bulging of thin T2 copper sheet by electromagnetic formingZHAO Qing-juan, WANG Chun-ju, YU Hai-ping, GUO Bin, SHAN De-bin, LI Chun-feng(School of Materials Science and Engineering, Harbin......
J. Cent. South Univ. (2016) 23: 765-777 DOI: 10.1007/s11771-016-3122-0 Research on technological parameters of pressure forming with hot granule medium on AA7075 sheet DONG Guo-jiang(董国疆)1, ZHAO... forming of light alloy sheet parts can be realized based on the properties of granule medium, such as withstanding high temperature and pressure, filling well, sealing and loading easily. In this work......
J. Cent. South Univ. Technol. (2011) 18: 1509-1517 DOI: 10.1007/s11771-011-0867-3 Method of closed loop springback compensation for incremental sheet forming process HAN Fei(韩飞)1, MO Jian-hua(莫健华... the springback of incremental sheet forming. A three-dimensional finite element model was established for simulation of springback in incremental sheet forming process. The closed loop algorithm......
