Transactions of Materials and Heat Treatment

Title：Analysis and optimization on defects from forming process of back door inner panel

Authors： Guan Laide

Unit： Liuzhou Vocational & Technical College

KeyWords： back door inner plate drawing process FEA simulation forming defects drawbeads

ClassificationCode：TG386

year,vol(issue):pagenumber：2017,42(5):19-24

Abstract：

For the inner plate of the back door, a four-step process was developed based on the characteristics of the large change in parts shapes and the deep drawing. Then, the forming process was simulated by the AutoForm software, and the defects such as crack at the upper right corner of the site, wrinkling near the tail risk, large springback of flange surface and local thinning in the drawing process of parts were analyzed. Furthermore, solutions such as increasing the R corner radius, optimizing and modifying drawbeads to reduce wrinkle and increasing drawbeads on the big flange surface were proposed. The results show that there is no wrinkling and cracking in the forming process of the inner plate of the back door, which is consistent with the numerical simulation results. The correctness of analysis results is proved by the corresponding experiments.

Funds：

2015年度广西高校科学技术研究项目（KY2015YB401）

关来德（1977-），男，硕士，讲师

Reference：

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