Transactions of Materials and Heat Treatment

Title：Stamping process optimization on automobile stainless steel plate based on scoring function

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ClassificationCode：TG386.2

year,vol(issue):pagenumber：2023,48(9):56-63

Abstract：

For a stainless steel plate for automobile, considering the problems of production efficiency and cost, a stamping process of one-die producing two-piece was designed, and in order to improve the forming quality and reduce the stamping force, the stamping process of stainless steel plate was studied by numerical simulation technology. Then, taking the minimum thickness, the maximum thickness and the maximum stamping force of plate as the inspection indexes, the scoring function was established, and the forming effects of integral blank holder with constant blank holder force, zonal blank holder with constant blank holder force and zonal blank holder with variable blank holder force were compared. The results show that the integral blank holder with constant blank holder force mode has a greater risk of cracking and wrinkling, and cannot obtain the plate that meets the size requirements, while the zonal blank holder mode can effectively avoid the risk of cracking and wrinkling, and the variable blank holder force loading mode is better which requires a smaller stamping force in the forming. Finally, the forming test of stainless steel plate was carried out by using zonal blank holder with variable blank holder force mode, and the plate without defects such as cracking and wrinkling was obtained to verify the effectiveness of the process.

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作者简介：王亚（1981-），男，学士，讲师 E-mail：wangya198102@163.com

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