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中文摘要：
针对大型汽车覆盖件形状复杂、成形过程变形复杂的特点，通过有限元分析和理论分析对某大型汽车前围板拉深工艺进行研究，提出通过优化工艺参数和修改模型型面，最终得到合理的工艺参数和模型型面，指导并完成模具设计。
英文摘要：
Aiming at the complex shape and deformation of large automobile panel during drawing process, the finite element analysis and theoretical analysis have been adopted to study the drawing process of some large automobile front panel. The reasonable process parameters and model surface have been obtained by optimizing the process and modifying the model surface. The die design has been guided and completed.
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