Transactions of Materials and Heat Treatment

Title：Defect control and process parameters optimization on drawing process of automotive panel

Authors： Zhi Shu Yi Yulan

Unit： Xinjiang Vocational & Technical College of Communications

KeyWords： drawing forming defects resistance coefficient of drawbeads blank holder force AutoForm Design-Expert

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2017,42(4):39-42

Abstract：

Crackle and wrinkle are the common defects in the drawing process of automotive panel parts. In order to control the defects in the drawing process, for an automotive engine cover panel, the finite element model was set up by Autoform software, and the experimental design was carried out by Design-Expert software. The resistance coefficient of drawbeads and parameters of blank holder force for automotive engine cover panel were optimized by the numerical simulation software and the experiment design method. The optimized parameters are as following: the resistance coefficient of drawbeads are A=0.3, B=0.3, C=0.4, and the blank holder force is D=1.25×103 kN. Furthermore, the optimized parameters were verified in test, and the forming parts were obtained without crackle and wrinkle defects. Thus, this method can effectively control the forming defects in the drawing process of automotive panel parts.

Funds：

新疆维吾尔自治区高校科研计划项目（XJEDU2015S070）

支姝（1982-），女，硕士，讲师 E-mail：zhishuxjjt@163.com

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