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Microstructure and mechanical properties of AZ31 Mg alloy processed by high ratio extrusion CHEN Yong-jun(陈勇军), WANG Qu-dong(王渠东), LIN Jin-bao(林金宝), ZHANG Lu-jun(张陆军), ZHAI Chun-quan(翟春泉... September 2006 Abstract: The microstructure and mechanical properties of AZ31 Mg alloy processed by high ratio extrusion (HRE) were investigated. General extrusion with extrusion ratio of 7 and high......
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NUMERICAL SIMULATION OF EXTRUSION OF COMPOSITE POWDERS PREPARED BY HIGH ENERGY MILLING Q.L.Zhu1,W.Xia1,Y.Y.Li1,X.Q.Li1,E.D.Wang2,W.P.Chen1 (1.College of Mechanical Engineering, South China... milling and the micromechanics of composite material, a plastic constitutive equation is implemented for milled composite powders. To check the equation, the extrusion of Ti/Al composite powders prepared......
and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China) Abstract: The microbial decomposition mechanisms of bauxite include direct and indirect mechanism, while... contact and indirect contact. The microfiltration membrane was used to segregate mineral powder from bacteria. The results show that Bacillus circulans and its metabolites can clearly promote......
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Process optimization diagram based on FEM simulation for extrusion of AZ31 profile LIU Gang(刘 钢)1, ZHOU Jie(周 捷)2, J DUSZCZYK2 1. School of Materials Science and Engineering, Harbin Institute...: The ram speed and the billet temperature are the primary process variables that determine the quality of the extruded magnesium profile and the productivity of the extrusion operation. The optimization......
J. Cent. South Univ. (2019) 26: 2307-2317 DOI: https://doi.org/10.1007/s11771-019-4175-7 Forward hot extrusion forming process of 4-lobe aluminum alloy helical surface rotor XIA Feng(夏峰)1, LI Hui(李... and costly. To make the manufacturing processes more flexible and economical, the forward hot extrusion process is proposed to form the 4-lobe aluminum alloy helical surface rotors. In this work, we implement......
Damage prediction for magnesium matrix composites formed by liquid-solid extrusion process based on finite element simulation QI Le-hua(齐乐华)1,2, LIU Jian(刘 健)1, GUAN Jun-tao(关俊涛)1, SU Li-zheng(苏力... was proposed to predict the occurrence of hot shortness cracks and surface cracks in liquid-solid extrusion process. This method integrated the critical temperature criterion and Cockcroft & Latham......
FEM simulation of aluminum extrusion process in porthole die with pockets HE You-feng(和优锋), XIE Shui-sheng(谢水生), CHENG Lei(程 磊), HUANG Guo-jie(黄国杰), FU Yao(付 垚) State Key Laboratory... to investigate the effects of pockets in the porthole die on the metal flow, temperature at the die bearing exit and the extrusion load were contrasted with the traditional die design without the pockets......
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