锻压技术

基于正交试验的座椅撑板冲压成形回弹研究及优化

英文标题：Springback analysis and optimization on stamping for seat support plate based on orthogonal experiments

作者：刘铭心张东民吴艳云周伦利

分类号：TG375

出版年,卷(期):页码：2017,42(12):36-40

摘要：

以某汽车座椅撑板为研究对象，采用Autoform有限元软件建立拉延过程有限元模型，对其成形和回弹进行分析。针对拉延成形过程中回弹量过大的缺陷，设计正交试验，选取压边力、摩擦系数、冲压速度和凸凹模间隙4个重要工艺参数作为因素，研究工艺参数对回弹量的影响规律，得到最优的工艺参数组合为：压边力250 kN，摩擦系数0.08，凸凹模间隙1.2 mm，冲压速度4000 mm·s-1。采用优化参数组合进行试模，试验结果与数值模拟结果吻合较好，工件成形效果完全符合设计要求。

For the seat support plate in the automobile, the finite element model of deep drawing was established by software Autoform, and the forming progress and springback were analyzed. Then, for the excessive springback amount in drawing process, the orthogonal test was carried out with the blank holder forces, friction coefficients, punch speed and die clearance as factors. Furthermore, the influences of the parameters on springback amount were studied, and the optimized combination parameters were obtained with the blank hold force 250 kN, friction coefficient 0.08, die clearance 1.2 mm and forming speed 4000 mm·s-1. Thus, the experiment results are in good agreement with the simulation results, and the part quality is completely satisfied with the design requirements.

基金项目：

企业横向项目（J2016-215）

作者简介：刘铭心（1994-），男，硕士研究生 E-mail：estlovers@aliyun.com 通讯作者：张东民（1968-），男，博士，教授 E-mail：dmzhang_nuaa@sit.edu.cn

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