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New extrusion process of Mg alloy automobile wheels WANG Qiang(王 强)1, ZHANG Zhi-min(张治民)2 , ZHANG Xing(张 星)2, LI Guo-jun(李国俊)1 1. College of Materials Science and Engineering, North University... magnesium alloy wheel were introduced. A new extrusion method was investigated especially. Extrusion from hollow billet was proposed in order to enhance the strength of spoke portion and reduce the maximum......
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RESEARCH ON THE SELECTION OF FRICTION MODELS IN THE FINITE ELEMENT SIMULATION OF WARM EXTRUSION Z.L.Zhang1,H.S.Xiao1,X.B.Lin1 (1.National Die and Mold CAD Engineering Research Center, Shanghai Jiao... extrusion, backward extrusion, and lateral extrusion by a methodof finite element simulation. Then on the base of synthesizing and correcting tradi-tional friction models, a new general friction......
J. Cent. South Univ. Technol. (2010) 17: 688-696 DOI: 10.1007/s11771-010-0541-1 Effects of process parameters and die geometry on longitudinal welds quality in aluminum porthole die extrusion...; Abstract: By using the rigid-visco-plasticity finite element method, the welding process of aluminum porthole die extrusion to form a tube......
in the advancing side is transported backward against the welding direction. However, a small amount is moved forward at the edge of the pin. The metal in the retreating side is only transported against the welding direction and some metal flows into the advancing side. The upper metal of weld is mainly affected by shoulder. The bulk of metal in the advancing side moves forward in the welding......
Effect of the Side Chain Structure on Hydrolysis Degradation of Zinc Acrylate CopolymersXIE Zhi-peng,LIU Chao,WANG Jing-jing,YE Zhang-jiXiamen Branch of Luoyang Ship Material Institute摘 要:In this report,zinc acrylate copolymers were synthesized by used different organic acid as the side chain structure.These copolymers were further characterized by GPC......
Effect of the Side Chain Structure on Hydrolysis Degradation of Zinc Acrylate CopolymersXIE Zhi-peng,LIU Chao,WANG Jing-jing,YE Zhang-ji(Xiamen Branch of Luoyang Ship Material Institute,Xiamen 361101,China)摘 要:In this report,zinc acrylate copolymers were synthesized by used different organic acid as the side chain structure.These copolymers were further......
Phase equilibria of low-Ni side in Nb-Ni-Ti system at 1100℃Hong-Xiao Li,Zhi-Chao Li,Yu-Ping Ren,Min Jiang,Gao-Wu QinKey Laboratory for Anisotropy and Texture of Materials,Ministry of Education,Northeastern University摘 要:The phase equilibria related to liquid phase in low-Ni side of Nb-Ni-Ti system at 1100℃ were investigated through scanning electron......
Phase equilibria of low-Y side in Mg-Zn-Y system at 400℃Bo-Shu Liu,Hong-Xiao Li,Yu-Ping Ren,Min Jiang,Gao-Wu QinKey Laboratory for Anisotropy and Texture of Materials,Ministry of Education,Northeastern University摘 要:Phase equilibrium relations of the Mg-Zn-Y system in the low-Y side at 400℃were investigated by alloy-equilibrated method,combined......