锻压技术

基于Co元素的冲压模具磨损的仿真预测

英文标题：Simulation prediction on stamping die wear based on Co element

作者：周春烨

单位：江阴职业技术学院

分类号：TG386

出版年,卷(期):页码：2018,43(6):118-122

摘要：

以0.2 mm的C5210R-EH磷青铜材料冲裁过程中的模具磨损作为研究对象，分析了板料冲裁变形过程中的接触摩擦情况。基于骨架理论和复合强化理论，运用Co元素的变化量对凸模的磨损进行评价，借助DEFORM2D软件对板料冲裁变形过程中的凸模磨损分布情况进行有限元仿真，分析了冲裁工艺参数对Co元素的变化量以及凸模磨损的影响变化趋势。研究结果表明：凸模端面的磨损量远小于侧壁的磨损量；凸模的磨损深度以及Co元素的变化量随着冲裁间隙的不断增大而减小，随着冲裁速度的不断增大而逐渐增加，而随着凸模刃口圆角半径的逐渐增大则呈现出先减小后增大的变化趋势，研究结果为冲压模具磨损的仿真预测提供了一种评价方法。

For the die wear of phosphorus bronze C5210R-EH sheet metal with thickness of 0.2 mm during blanking process, the contact friction in the process of blanking deformation was analyzed, and the punch wear was evaluated by the variation of Co element based on the skeleton theory and the compound strengthening theory. Then, the punch wear in the blanking process was simulated by DEFORM2D, and the change trend between the blanking process parameters and the variation of Co element as well as punch wear was studied. The results show that the wear amount at the end face of punch is much less than that of the side wall, and the wear depth of punch and variation of Co element decrease with the increase of die clearance depth, while they increase with the increase of stamping speed, as well as they decrease first and then increase with the increase of die fillet radius. Therefore, research results provide an evaluation method to predict the wear of stamping die.

基金项目：

周春烨（1981-），男，硕士，讲师；Email：35531114@qq.com

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