Transactions of Materials and Heat Treatment

Title：CAE analysis on stamping mold wear for automobile stainless steel plate based on RSM

Authors： Lian Bingxian1 Fan Wenyuan2

Unit： 1.Department of Mechanical Engineering Shanxi Institute of Mechanical and Electrical Engineering 2.Shanxi Aerospace Qinghua Equipment Co. Ltd.

KeyWords： die wear stamping dies blank hold force stamping speed stamping clearance response surface method

ClassificationCode：TG76

year,vol(issue):pagenumber：2022,47(6):113-117

Abstract：

In order to reduce the mold wear of automobile special-shaped stainless steel plates during stamping process, the stamping process of plate was simulated by CAE analysis software Deform-3D, and based on the response surface method, taking the wear depth of punch and die as the optimization objective, the stamping process parameters were optimized. Then, the response surface models among blank holder force, stamping speed, stamping clearance and evaluation parameters were established by using Box-Behnken to design stamping test groups which were combined with the Archard model, and the influence laws of each process parameter on the mold wear was obtained. Furthermore, after comprehensive analysis, the optimal combination of stamping process parameters was determined as the blank holder force of 375 kN, the stamping speed of 78.5 mm·s-1, and the stamping clearance of 2.17 mm. At the same time, the stamping mold life was predicted according to the maximum wear depth results. Finally, the stamping practice proves that the actual service life of stamping mold is 3721 pieces with the optimal combination of stamping process parameters, which is in good agreement with the predicted results, and the service life of mold is greatly improved.

Funds：

山西省教育科学“十三五”规划 2020 年度教育政策研究专项课题（ZC-20047）

廉冰娴（1980-），女，硕士，副教授 E-mail：johnlsnn211@sina.com

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