Transactions of Materials and Heat Treatment

Title：Draw forming simulation and die-structure optimization of front fender

Authors： BAI Feng-mei1 JIN Yu-lan2 WANG Xiao-lin3 ZHENG Guang-wen1(1.Metal Material and Process Laboratory Anhui University of Technology Maanshan 243000 China 2. Anhui Hualing Automobile Co. Ltd. Maanshan 243000 China 3.Rayhoo Motor Dies Co. Ltd. Wuhu 2

Unit：

KeyWords： front fender drawing fillet radius FE

ClassificationCode：TG386

year,vol(issue):pagenumber：2009,34(3):140-143

Abstract：

The three-dimension model for front fender was set up by the UG software. The draw forming process of the sheet material was simulated by the finite element software AUTOFORM. The simulation results show that there are wrinkling defects. It is consistent well with the actual production. Therefore, the simulation is accuracy. Further analyses reveal that the defects are formed because of local metal flow retardant. The measure that increased fillet radius and improved addendum height was brought forward. The optimal parameters of die-structure were obtained. The process tests show that die-structure optimization is reasonable, which eliminates the defects and ensures quality of products.

Funds：

安徽省青年教师资助项目(2008jq1027)

Reference：

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[3]赵侠,李飞.汽车发动机罩外板拉深成形的数值模拟[J].锻压技术,2007,32(5):50-53.
[4]汪祥支,苏超,周锐,等.汽车保险杠拉深成形数值分析与工艺优化[J].锻压技术,2008,33(1):45-46.
[5]张士宏,程幸叶,唐杰.汽车覆盖件成形拉深筋的有限元模拟与优化[J].锻压技术,2008,33(6):140-143.

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