Transactions of Materials and Heat Treatment

Title：Hot drawing on Ti6Al4V titanium alloy box-shaped parts

Authors： Guo Wenping1 Shi Lijun2 3 Cao Jiang4 Zhang Bang1 Sun Guichuan2 Fang Gang3

Unit： 1.Guizhou Yonghong Aviation Machinery Co. Ltd. 2.Suzhou Wuyue Aviation Technology Co. Ltd. 3.Department of Mechanical Engineering Tsinghua University 4.The Third Military Generation Office of Chengdu Bureau in Guiyang

KeyWords： Ti6Al4V titanium alloy hot drawing box-shaped parts thinning rate forming performance

ClassificationCode：TG306

year,vol(issue):pagenumber：2023,48(12):87-93

Abstract：

Based on the analysis of the factors affecting the hot forming performance of Ti6Al4V titanium alloy sheet, the process development of actual hot forming parts was guided by finite element simulation. Firstly, based on the hot uniaxial tensile experiment, the influences of temperature and average strain rate on flow stress, forming limit and thickness directivity coefficient of Ti6Al4V titanium alloy sheet were summarized. Then, according to the geometrical characteristics of box-shaped parts, the three factors affecting the forming of box-shaped parts, namely, forming temperature, average strain rate and sheet direction, were analyzed by finite element simulation, and the optimal forming parameters were obtained. Finally, referring to the optimal forming parameters obtained by the simulation, the fine-turning was conducted according to the actual forming effect, and the deep drawing of box-shaped part was completed. The results show that the final forming effect and the thinning rate of part are basically consistent with the results of finite element simulation, which proves that the finite element simulation can reflect the actual forming state of part accurately. Thus, it is significant to determine the reasonable process conditions for the hot drawing of box-shaped parts.

Funds：

作者简介：郭文平（1987-）,男，学士，高级工程师 E-mail：442623900@qq.com 通信作者：施立军（1988-）,男，博士研究生，高级工程师 E-mail：sit0202@163.com

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