Transactions of Materials and Heat Treatment

Title：Simulation design and optimization on stamping of symmetrical parts for automobile seats

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ClassificationCode：TH162

year,vol(issue):pagenumber：2024,49(1):75-80

Abstract：

In order to solve the forming defects in the stamping process of high-strength steel as the material of automobile part, for the side panel of angle adjuster for automobile seat of a certain brand, according to its geometric structure and the characteristics of symmetrical parts, the design and optimization on the stamping process flow and the optimization of part forming accuracy were carried out. First, the stamping process of parts is determined, the work content of punching process is merged with other processes according to its structural characteristics so as to reduce the total number of processes reasonably and complete the stamping of two parts simultaneously and the optimized stamping process is blanking, deep drawing, trimming and flanging. Then, the forming accuracy of part is optimized by adjusting blank holder force, friction coefficient and deep drawing die clearance to reduce its springback amount and make the part meet the actual dimensional accuracy requirements. The optimized combination of process parameters is that the blank holder force is 33 kN, the friction coefficient is 0.13 and the deep drawing die clearance is 2.70 mm, and the maximum springback amount of part in the simulation results is 1.264 mm. Finally, the test stamping of sample shows that the actual maximum springback amount of part is 1.270 mm, which is basically consistent with the simulation results and verifies the validity of the simulation results.

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作者简介：任维泽（1995-），男，硕士，研究实习员 E-mail：renwz7@163.com 通信作者：段绪星（1995-），男，硕士，助理研究员 E-mail：xxing_duan@163.com

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