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Abstract：
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For the wrinkle and crack defects in the deep drawing process of vehicle shield with straight-wall box structure, the forming effects under the whole binder surface and the separate binder surface were compared and analyzed by finite element, and it was simulated that the separate binder surface solved the defects caused by the conventional forming. The results show that the deep drawing quality improves greatly by using the separate binder surface, and the crack and wrinkle defects caused by the whole binder surface are solved. Furthermore, through the design center compound experiment, taking blank holder force, stamping speed and friction coefficient as factors, by establishing the second-order polynomial function model between the factors and the targets, the values of blank holder force and the key process parameters were optimized, and the best combination of pracess parameters was obtained. Meanwhile, the forming effect of parts is good by the trial experiment under the separate binder surface and the optimized parameters, and the forming defects are successfully solved to verify the correctness of this simulation results.
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Funds：
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智能制造泸州市重点实验室开放基金（GY201804）
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AuthorIntro：
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魏圣坤（1982-），男，硕士，讲师，E-mail：jieshuli37033033@163.com
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Reference：
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