Transactions of Materials and Heat Treatment

Title：3D FEM simulation of multi-pass upsetting and stretching for TC11 alloy

Authors： WANG Zhong-tang1 DUAN Xiao-liang1 ZHANG Hai-yan2 SONG Hong-wu2 ZHANG Shi-hong2(1.School of Material Science and Engineering Shenyang Ligong University Shenyang 110168 China 2.Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China)

Unit：

KeyWords： titanium alloy multi-pass forming numerical simulation

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2009,34(1):1-5

Abstract：

The finite element software DEFORM-3D was employed to simulate multi-pass upsetting and stretching of TC11 alloy in near β zone.The distribution of temperature and effective strain fields were investigated.Simulation results show that the optimal compression ratio of TC11 is 41% during multi-pass upsetting and stretching.The process of stretching is divided into two steps,and in each step,compression ratio is 50%.In the last pass,the workpiece should be upset to 210 mm first and rotated 180°,then upset to 140 mm.The initial coarse lamellar structure can be transferred to refined equaxied structure through multi-pass upsetting and stretching,which can provide eligible workpiece for the next forging process.

Funds：

国家自然科学基金资助项目(50775211)

Reference：

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