锻压技术

基于Autoform汽车后围上盖板拉延成形模拟应用

英文标题：Application of drawing simulation for automobile reinforcement upper back based on Autoform

作者：宫晓峰于仁萍

单位：烟台职业学院

分类号：

出版年,卷(期):页码：2014,39(4):149-153

摘要：

以汽车后围上盖板零件为研究对象，阐述了利用Autoform软件对零件拉延成形进行有限元分析的一般步骤，并基于CAE分析结果预测拉延中出现的拉裂、起皱等成形缺陷。利用调整拉深筋参数、改变工艺补充面等方式，对成形结果进行优化。通过多次模拟给出成形的最佳工艺参数，为优化模具方案提供依据。为了对有限元分析的结果进行验证，对生产零件的实际数据进行测量，对比发现实际测量结果与CAE模拟结果比较吻合。实践证明：应用有限元分析可以达到预测汽车覆盖件拉延成形并进行缺陷分析的目的。

The automobile reinforcement upper back was taken as study object,and the general steps of part drawing forming finite element analysis was introduced.Based on the CAE analysis results,some drawing defects such as fracture and wrinkling were predicted. An optimized result was gained by adjusting drawbead parameters and addendum.Through simulations，the optimum parameters of forming were obtained，which provided reference for mould optimizing scheme. In order to verify the results of finite element analysis, the actual data on part was measured. By comparison, the actual measurement results are consistent with the simulation results of CAE. Practice proves that the application of finite element analysis can predict the formability and analyze defects during the automobile panel drawing forming process.

基金项目：

山东省高等学校科技计划项目（J13LB59）

宫晓峰（1981-），男，硕士，讲师

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