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Abstract：
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The tail-gate inner panel stamping process and the structure of drawing die with double pads were introduced, and the technological analysis of the parts, selection of the stamping direction, technological contents and design points of each process were described. Then, the drawing process, structural design of drawing die and its working principle were mainly analyzed, and the mass defects of crack and wrinkle were eliminated by concave drawing, design of window blank holder in the upper die and control of material flow by stages during drawing process. Furthermore, the adjustment period of later production was reduced by process optimization and analysis verification of CAE simulation with Autoform. The actual production shows that the crack and wrinkle in tail-gate inner panel forming can be effectively solved by using the above stamping process meets automatic stamping production with four orders, and the part precision and surface quality are better.
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Funds：
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国家科技重大专项（2014ZX04002041）
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AuthorIntro：
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王海玲（1989-），女，学士，工程师
E-mail：wanghailing89@163.com
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Reference：
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