Transactions of Materials and Heat Treatment

Title：Design and optimization on extrusion die for TC4 titanium alloy T-shaped thin-walled profile

Authors： Li Jingjing1 Zhao Jianbo1 Zhang Zhiqiang2 Meng Fanling1 Bai Chunguang2

Unit： 1. Shenyang Ligong University 2. Shi-Changxu Innovation Center for Advanced Materials Institute of Metal Research Chinese Academy of Sciences

KeyWords： TC4 titanium alloy metal flow velocity guide groove extrusion mold structural parameters

ClassificationCode：TG372

year,vol(issue):pagenumber：2023,48(11):159-166

Abstract：

Reasonable design of extrusion die plays a key role in the production of titanium alloy extrusion profile. Therefore, the extrusion process of TC4 titanium alloy T-shaped thin-walled profile was numerically simulated by finite element software, and the different structural parameters were simulated and combined by single factor method and orthogonal experimental method. Then, taking standard deviation value SDV of outlet velocity field as a reference, the influences of inlet fillet, mold hole position and guide groove shape on the metal forming effect after extrusion were investigated, and the metal flow rule during the extrusion process was analyzed. The research results show that when the extrusion process conditions remain unchanged, the profile with a better shape can be obtained by adjusting the mold inlet fillet and the distance between mold hole center and mold circle center, and adjusting the shape of guide groove can further optimize the mold and make the metal flow out of the mold hole more evenly.

Funds：

国家重点研发计划项目（2017YFB0306201）

作者简介：李静静（1984-），女，博士，讲师，E-mail：jjli@alum.imr.ac.cn；通信作者：张志强（1981-），男，博士，副研究员，E-mail：zqzhang@imr.ac.cn

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