Transactions of Materials and Heat Treatment

Title：Simulation and parameters optimization of deep drawing for automobile fender

Authors： Ma Guoying Huang Binbing Su Chunjian Yin Feifei Li Pengpeng

Unit： Shandong University of Science and Technology Tsinghua University

KeyWords： automobile fender numerical simulation orthogonal test thinning rate thickening rate

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2015,40(3):21-24

Abstract：

The deep drawing process of the automobile fender was simulated by finite element analysis software of Dynaform. For the defects such as wrinkles and cracks produced in deep drawing process, the orthogonal experiment and parameter optimization were carried out, while blank holder force, punching speed, sheet thickness and friction coefficient were chosen as process parameters. The simulation results show that the optimal deep drawing process parameters are blank holder force of 1600 kN, punching speed of 3000 mm·s-1, sheet thickness of 1.0 mm and friction coefficient of 0.10 with the max thinning rate of 27.7% and the max thickening rate of 8.5%. The automobile fender drawing test was conducted by optimized process, and the forming quality is better with the wall thickness within 0.728-1.08 mm. The test results are basilally consistent with that of finite element simulation.

Funds：

国家自然科学基金资助项目(51305241);山东省高等学校科研计划项目(J12LA03)

马国英（1987-），女，硕士研究生

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