Transactions of Materials and Heat Treatment

Title：Numerical simulation and improvement measures on stamping defects for automobile side-frame outer panel

Authors： Ren Chuang Pan Yuan′an Su Chuanyi Xiao Bing Gao Wenqiang

Unit： China FAW Group Co. Ltd. Changchun Automobile Industry Institute

KeyWords： side-frame outer panel taillight pressure parameter surface quality stamping defects

ClassificationCode：TG386

year,vol(issue):pagenumber：2022,47(5):103-109

Abstract：

In order to improve the surface quality of automobile side-frame outer panel, a solution to the ridgeline wave at the flanging fillet for taillight of side-frame outer panel was sought. Then, combined with theoretical analysis, process analysis and production experience, the numerical simulation was conducted by analysis software AutoForm to restore the defect generation process of parts, and the pressure parameter was introduced for the first time to determine the defect. After the rectification schemes of the transition zone was formulated, the numerical simulation method was used again to compare and analysis the advantages and disadvantages of the scheme, and the mold according to the best one was rectified. The results show that the threshold problem caused by the defect can be more clearly determined by the pressure parameter to determine the fitting die state of the part. Modifying the flanging transition zone can solve the problem of ridgeline wave at the flanging fillet for taillight of side-frame outer panel and save the grinding cost of 2 yuan per vehicle. Thus, a total saving in the model cycle is 1.03 million yuan, which provides reference for the quality improvement of stamping outer cover panels in the automotive industry.

Funds：

吉林省高等教育学会课题（JGJX2021D680、JGJX2021D685）

作者简介：任闯（1989-），男，学士，工程师，E-mail：renchuang@faw.com.cn；通信作者：潘远安（1983-），男，硕士，高级工程师，E-mail：116521719@qq.com

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