Transactions of Materials and Heat Treatment

Title：Finite element analysis on stamping process for cab roof of new energy underground depot vehicle based on Dynaform

Authors： Xian Xiaohong1 2 Zhang Dinglu3 Chen Ying4 Yang Liu5 Cao Jianguo1

Unit： 1.School of Mechanical Engineering Sichuan University 2.School of Intelligent Manufacturing Sichuan Vocational and Technical College 3. Sichuan Longxin Technology Packaging Co. Ltd. 4. Department of Mechanical and Electrical Engineering Leshan Vocational and Technical College 5. Sichuan Jianghuai Automobile Co. Ltd.

KeyWords： D6176 new energy underground depot vehicle cab roof stamping process blank holder force forming speed drawbead resistance

ClassificationCode：TG386.3+2

year,vol(issue):pagenumber：2022,47(12):44-55

Abstract：

Based on the nonlinear finite element software Dynaform, the stamping process of cab roof for D6176 new energy underground depot vehicle was simulated numerically, and the changing laws of quality characteristic factors such as maximum thinning rate of cab roof, proportion of insufficient forming area, shape error of front and rear assembly benchmarks were analyzed by comparison. At the same time, considering the actual production conditions of enterprise, the application status of cab roof, the market situation and many other factors, the reasonable stamping process conditions of cab roof for D6176 new energy vehicle were finally determined, and the production verification was carried out. Meanwhile, the influence laws of friction difference between inner and outer surfaces of blank and unevenness of part depth on the unevenness of material flow during the stamping process was also verified.

Funds：

四川省科技计划项目 (2021YFG0220，2015FZ0113); 四川省教育厅重点项目 (18ZA0430，15ZA0347)

鲜小红 (1967-),男，学士，教授 E-mail： 2682453521@qq.com 通信作者：曹建国 (1971-),男，博士，副教授 E-mail：cjgkl@sina.com

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