Transactions of Materials and Heat Treatment

Title：Stamping analysis and forming die design of C-pillar inner plate in a car

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ClassificationCode：TG316

year,vol(issue):pagenumber：2020,45(1):69-73

Abstract：

C-pillar inner plate is an important structural part in the car, and the stamping deformation is complicated. First, the C-pillar inner panel parts were subjected to stamping analysis to determine the forming scheme and forming blank. Then, based on the 3D calculation model, the forming process of parts was numerically simulated by software Autoform, and the FLD of parts was obtained. According to the numerical simulation results, the overall forming performance of parts and the material thinning rate were analyzed, and the stamping defects such as wrinkles and cracks during the forming process of C-pillar inner plate were predicted. The results show that the parts are integrally formed, and the local position of material is thinned by more than 20% which is dangerous to crack. Next, the upper die, blank holder and lower die of the forming die were designed by software UG and CAD. Finally, the qualified C-pillar inner plate parts were stamped by production practice, and the rationality of stamping analysis and the correctness of die design were verified.

Funds：

山东省高等学校科技计划研究项目（J17KA034）

作者简介：万志远（1988-），男，硕士，讲师，工程师 E-mail：815223128@qq.com

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