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汽车覆盖件拉深模工艺补充部分和压料面设计是一个设计边界条件以确保成形顺利实现的创造性过程．提出了基于事例的汽车覆盖件成形ＣＡＤ的总体设计思想和设计流程，建立了覆盖件拉深模工艺补充部分和压料面的截面特征库，探讨了基于变量化技术的工艺补充部分和压料面的设计方法．并通过数值仿真对全顺汽车翼子板零件拉深模工艺补充部分和压料面设计的可行性进行了验证．
The automotive part draw mold process complements and blanket design are a creative process of designing the boundary conditions to ensure smooth forming. The paper puts forward the overall design idea and design flow of case-based automotive panel forming CAD, builds the cross-section feature library of the complementary part of the drawing die and the blank holder surface, and discusses the technological supplement part and the blanker based on the variable technology Surface design method. Through the numerical simulation, the feasibility of supplementary part of the drawing process of the fender parts of Transit and the design of the binder surface has been verified.