锻压技术

基于RSM的汽车不锈钢板件冲压模具磨损CAE分析

英文标题：CAE analysis on stamping mold wear for automobile stainless steel plate based on RSM

作者：廉冰娴1 樊文渊2

分类号：TG76

出版年,卷(期):页码：2022,47(6):113-117

摘要：

为了减少汽车异形不锈钢板件在冲压过程中的模具磨损，应用CAE分析软件Deform-3D对板料冲压过程进行数值模拟，并基于响应面法，以凸、凹模的磨损深度为优化目标，对冲压工艺参数进行优化。采用 Box-Behnken设计冲压试验组，并结合Archard 模型，建立了压边力、冲压速度、冲压间隙与评价参数之间的响应面模型，得到了各工艺参数对模具磨损的影响规律，综合分析后，确定了最优冲压工艺参数组合为：压边力为375 kN、冲压速度为78.5 mm·s-1、冲压间隙为2.17 mm。同时，根据最大磨损深度结果对冲压模具的寿命进行了预测，最终经过冲压实践证明，采用最优冲压工艺参数组合，冲压模具的实际寿命为3721 件，与预测结果的一致性较好，模具寿命得到大幅提升。

In order to reduce the mold wear of automobile special-shaped stainless steel plates during stamping process, the stamping process of plate was simulated by CAE analysis software Deform-3D, and based on the response surface method, taking the wear depth of punch and die as the optimization objective, the stamping process parameters were optimized. Then, the response surface models among blank holder force, stamping speed, stamping clearance and evaluation parameters were established by using Box-Behnken to design stamping test groups which were combined with the Archard model, and the influence laws of each process parameter on the mold wear was obtained. Furthermore, after comprehensive analysis, the optimal combination of stamping process parameters was determined as the blank holder force of 375 kN, the stamping speed of 78.5 mm·s-1, and the stamping clearance of 2.17 mm. At the same time, the stamping mold life was predicted according to the maximum wear depth results. Finally, the stamping practice proves that the actual service life of stamping mold is 3721 pieces with the optimal combination of stamping process parameters, which is in good agreement with the predicted results, and the service life of mold is greatly improved.

基金项目：

山西省教育科学“十三五”规划 2020 年度教育政策研究专项课题（ZC-20047）

廉冰娴（1980-），女，硕士，副教授 E-mail：johnlsnn211@sina.com

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