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for forming parameters optimization and quality control. Key words: hot ring rolling; coupled thermo-mechanical FE model; temperature distribution; deformation nonuniformity; FEM ... Thermo-mechanical coupled analysis of hot ring rolling process SUN Zhi-chao(孙志超), YANG He(杨 合), OU Xin-zhe(欧新哲) College of Materials Science and Engineering, State Key Laboratory......
an 800 Ton SPF press. As superplastic forming processes are very sensitive to the forming temperature and forming pressure, special care needs to be taken in the control of temperature and gas pressure. In this experiment, forming temperature was maintained in the tool by cartridge heaters within the press platen, and the gas mass flow was controlled by pneumatic proportional valves, which were......
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Development and Prospect on Optimum Design of Metal Forming Process韩静涛摘 要:<正> 1.IntroductionThe research of metal forming theoryand technology always takes an importantplace in materials science and engineering.However,in a long period,the developmentof technology goes ahead of the theoreticalstudy.Most design principles used in prac-关键词:......
FEM analysis of vacuum hot bulge forming of Hastelloy C-276 thin-walled cylindrical workpieceZHU Zhi(朱智), ZHANG Li-wen(张立文), GU Sen-dong(顾森东) (School of Materials Science and Engineering, Dalian.... The creep constitutive equation set has been integrated with the commercial FE (finite element) solver MSC.Marc via the user defined subroutine, CRPLAW, for the vacuum hot bulge forming process......
than 15 kN. Good lubrication is necessary for hot stamping of aluminum alloy. Forming will be successful while friction coefficient is less than 0.15. Key words: aluminum alloy; forming quality... Wenliang. Analysis tutorial of sheet metal forming CAE[M]. Beijing: China Machine Press, 2005: 147-149. [10] 刘红生, 包军, 刑忠文. 高强钢板热冲压成形热力耦合数值模拟[J]. 材料科学与工艺, 2010, 18(4): 459-463. LIU Hongsheng, BAO Jun, XING......
Numerical simulation of temperature field in plasma-arc flexible forming of laminated-composite metal sheets SONG Wen-qing(宋文庆)1, XU Wen-ji(徐文骥)1, WANG Xu-yue(王续跃)1, MENG Jian-bing(孟...; Abstract: Flexible forming of laminated-composite metal sheets (LCMS) using plasma arc is a latest technique, which produces LCMS components by thermal stress......
aforementioned have been successfully used in some cold metal forming processes. However, the extension of the fracture criteria to hot forming processes is difficult because ductile fracture is a complicated... to center of sample The damage value obtained by Oyane criterion in cold metal forming is usually a constant. However, for hot metal forming processes, the critical fracture values increase with increasing......
复合型材,制备的型材性能稳定,生产工艺可行；该方法可以提高生产效率,降低原材料成本. 关键词:回收钛；钛-铜复合型材；热挤压成形 中图分类号:TG 376.2 文献标志码:A Hot extrusion forming of low-cost Ti-Cu clad rod NI Pei-tong, HAN Ming-chen, ZHANG Ying-ming, WANG Cheng-zhang, PAN Zhi-qiang, ZHU Mei-sheng (Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China) Abstract: The Ti-Cu clad rod was prepared by hot extrusion......
molding technology by semisolid processing. Semisolid metal forming has great potential because 1) it is a simple manufacturing process, 2) it is an alternative process for low-workability materials, and 3) it is applicable to processing composite materials. Consequently, semisolid metal forming is a novel process that has great potential to expand its applications to areas where conventional plastic......
