Transactions of Materials and Heat Treatment

Title：Surface defect analysis and stamping process optimization on automobile side wall outer panel

Authors：

Unit：

KeyWords： side wall outer panel surface defect stamping process die structure storage process convex hull

ClassificationCode：TG386

year,vol(issue):pagenumber：2021,46(6):91-98

Abstract：

The surface quality of automobile outer panel directly affects the appearance of vehicle, which is one of the key points in stamping field. For a series of surface defects such as cracks, wrinkles, uneven arc contour, etc. in the side wall outer panel of a certain model for SVW Skoda brand during stamping process, the reasons for defects were analyzed from the perspective of process design and die structure. Then, combining CAE simulation and on-site debugging, on the basis of satisfying different working conditions of test press and production line press, the most difficult surface problem was solved by optimizing the product surface storage process convex hull and balancing the blank hold force and the shaping force, and the requirements for production stability and product quality were met. On the basis, the economic benefits produced by process optimization were calculated, and it was of reference signification for part design, stamping die process and structure design of side wall, and stamping die debugging of side wall of side wall outer panel product in automobile industry.

Funds：

代丽（1988-），女，硕士，工程师 E-mail：hust_liqing@163.com

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