Transactions of Materials and Heat Treatment

Title：Dimensional springback analysis and control method for large aspect ratio parts

Authors： Yan Dandan1 Zhao Jingshi2 Pan Yuan′an1

Unit： 1. School of Electrical Engineering Changchun Automobile Industry University 2. FAW JieFang Automotive Co. Ltd.

KeyWords： stamping windshield outer panel springback aspect ratio drawing

ClassificationCode：TG386.3+2

year,vol(issue):pagenumber：2025,50(7):82-87

Abstract：

In order to solve the problem that the windshield outer panel of a commercial vehicle has a large aspect ratio, large springback, and the dimensional accuracy has a great impact on the accuracy of body-in-white assembly, for the springback problem in actual production of a commercial vehicle windshield outer panel, the springback analysis on the stamping process of part was conducted by Autoform, and the springback trend of process parts was determined. Then, the springback compensation with a maximum value of 2.22 mm was given in the relevant area of the drawing process, and the compensation results were verified by simulation analysis. The results show that after compensation, all parts are within theoretical tolerance value in the fixture-clamped state. The on-site debugging ensures that the drawbead contact pattern, sheet metal inflow and other factors of drawing are consistent with the CAE simulation, and the springback of actual produced parts is also consistent with the simulation result. Thus, the production practice proves that CAE simulation can effectively control and adjust the springback problem of stamping windshield outer panel parts with a large aspect ratio.

Funds：

吉林省教育厅科学技术研究项目(JJKH20251907KJ);中国汽车工业协会职业技术课题（2024QX370121）；长春汽车职业技术大学校级科研课题（XJKY202412）

作者简介：颜丹丹（1982-），女，硕士，副教授 E-mail：49364102@qq.com 通信作者：潘远安（1983-），男，硕士，正高级工程师 E-mail：116521719@qq.com

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