锻压技术

汽车侧壁上外板冲压成形过程仿真及实验

英文标题：Stamping process simulation and experiment of automotive side wall plate

作者：白有俊刘世豪苏思郑艳

分类号：TP31

出版年,卷(期):页码：2017,42(9):25-29

摘要：

针对汽车侧壁上外板成形过程中的缺陷问题，研究了冲压成形过程仿真技术。以一种汽车侧壁上外板为对象，对冲压成形过程和结果进行分析，发现零件发生了较不均匀的变形和局部破裂现象。针对成形缺陷，对工艺参数和条件进行改进，增设14段拉延筋，调整合理的拉延筋阻力，将压边力增加至100 kN，并改善模具的润滑条件。建立冲压成形改进模型，重新进行仿真分析，破裂和起皱缺陷被消除，厚度变化比较均匀，通过实验验证了工艺方案的可行性。研究结果表明，所提出冲压成形过程仿真技术具有较高的实用性。

In view of defects in the forming process of automobile side wall plate, the stamping process simulation technology was studied. For the automobile side wall plate, the stamping process and results were analyzed, and the non-uniform deformation and partial fracture phenomenon were found. Aiming at solving the forming defects, the process parameters and conditions were optimized by adding fourteen drawbeads, adjusting the drawbead resistance reasonably, increasing the blank-holder force to 100 kN and improving the lubrication conditions. Therefore, the improved model of stamping was established, and the simulation analysis was carried out again. Thus, the fracture and wrinkle defects are eliminated, and the variation in thickness is uniform. Furthermore, the feasibility of the stamping process scheme is verified by experiment. The research result shows that the proposed simulation technology of stamping process is highly practical.

基金项目：

国家自然科学基金资助项目（51405115）；海南省高等学校科学研究项目（Hnky2017-69）

作者简介：白有俊（1983-），男，讲师，硕士 E-mail：642baiyoujun@163.com 通讯作者：刘世豪（1981-），男，副教授，博士 E-mail：liushihao1102@126.com

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