Transactions of Materials and Heat Treatment

Title：Finite element simulation of multiple passes equal channel angular pressing process

Authors： BAI Pu-cun1 2 NIE Hao2 TIAN Chun-yu2 REN Yong-gang2 ZHANG Jian-jun1 (1.School of Materials Science and Engineering Inner Mongolia University of Technology Hohhot 010051 China 2.Baotou 202 Plant Baotou 014000 China)

Unit：

KeyWords： equal channel angular pressing finite-element simulation multiple passes

ClassificationCode：TG376

year,vol(issue):pagenumber：2007,32(5):125-129

Abstract：

Equal channel angular pressing(ECAP) is a new technology for obtaining ultra-fine grain materials.Choice of technologic route will greatly affect the uniformity of the strain distribution of workpiece.Non-linear finite-element software MSC.Marc was employed to simulate equal channel angular pressing(ECAP) process of multiple passes.The distributing rules of equivalent effective strain after six passes in route A and route C were obtained.The results show that equivalent effective strain of workpiece in route C is more homogeneous than that in route A,but cumulate equivalent effective strain of workpiece end in route C is not as good as that in route A.The maximum load of per pass is increased gradually and it is basically almost the same in route A and in route C.

Funds：

内蒙古自治区自然科学基金资助项目(200408020707);; 内蒙古自治区高等学校科学研究项目(NJ03002)

Reference：

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