Transactions of Materials and Heat Treatment

Title：Research on stamping process optimization and springback control for automobile left and right side beam reinforcement plates

Authors： Chen Peng1 Duan Lei1 2 Ma Zhou1 Chang Fei1 Zhang Yan1 Li Qingbao2

Unit： 1.College of Mechanical Engineering Tianjin University of Technology and Education 2.Tianjin Zhongcheng Model Technology Co. Ltd.

KeyWords： sheet metal forming thinning rate springback amount springback compensation stamping

ClassificationCode：TG386

year,vol(issue):pagenumber：2023,48(12):72-80

Abstract：

The stamping process and springback of left and right side beam reinforcement plates for automobile were simulated by finite element software Autoform. Then, taking blank holding force, friction factor, stamping speed and die clearance as the optimization variables, and the maximum thinning rate and the maximum springback amount as the evaluation indexes, the orthogonal test scheme was designed, and the optimal process parameters combination was determined to be the blank holding force of 450 kN, the friction factor of 0.13, the stamping speed of 1500 mm·s-1 and the die clearance of 1.04 mm. Furthermore, based on the optimal process parameters, the stamping and springback of parts were simulated, and on the premise that the thinning rate of part was reduced to 22.7% and the forming quality was met, the reverse springback compensation design was conducted on the facade and flange of part. Finally, the springback simulation results of the compensated parts and the test results of the actual production parts were compared. The results show that the simulation results are basically consistent with the actual production results, and the final stamping quality and the springback amount of parts meet the technical requirement, which provides useful guidance for the research on the stamping of similar parts.

Funds：

天津市科技计划项目（20YDTPJC01650）；天津市津南区科技计划项目（201805002）

作者简介：陈鹏(1995-), 男, 硕士研究生 E-mail：18332716150@163.com 通信作者：段磊(1980-), 男, 硕士, 副教授, 硕士生导师 E-mail：16103@tute.edu.cn

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