锻压技术

基于正交试验的板料预切冲裁断面质量优化

英文标题：Optimization on cross section quality of pre-cut blanking based on orthogonal test

作者：李兵拾以超章芳芳

单位：李兵拾以超章芳芳

分类号：TG386

出版年,卷(期):页码：2018,43(4):60-63

摘要：

以离合器中的冲压零件为分析对象，选择预切冲裁深度、冲裁间隙以及冲裁速度为影响因素，以光亮带长度作为评价指标，建立4因素3水平正交试验，利用Deform-2D仿真软件对不同冲裁工艺参数组合下的板料预切冲裁断面质量进行了有限元模拟。通过正交试验的极差分析得知，冲裁工艺参数对板料预切冲裁断面质量的影响程度分别为：冲裁间隙>冲裁速度>预切冲裁深度。研究得出板料预切冲裁的最优工艺参数组合为：预切冲裁深度为0.15 mm，冲裁间隙为8%t，冲裁速度为15 mm·s-1，光亮带长度的模拟值为0.83 mm。借助冲压级进模进行冲裁试验，光亮带长度的试验值为0.738 mm，其与有限元模拟值之间的相对误差为12.5%，可为企业的实际生产提供指导。

For stamping parts in clutch, the pre-cut blanking depth, blanking clearance and blanking speed were selected as the influencing factors, and the length of bright region was used as the evaluation index. Then, the three-level and four-factor orthogonal test was designed, and the quality of cross section for pre-cut blanking of sheet metal under different blanking parameters was simulated by Deform-2D. The range analysis of orthogonal test shows that the influence sequence of technological parameters on the quality of cross section for pre-cut blanking is blanking clearance > blanking speed > pre-cut blanking depth. Furthermore, the optimum technological scheme for pre-cut blanking of sheet metal is the pre-cut blanking depth of 0.15 mm, the blanking clearance of 8%t, the blanking speed of 15 mm·s-1 and the length of bright region of 0.83 mm. In addition, the blanking experiment was conducted by stamping progressive die. And the experiment value of length of bright region is 0.738 mm. Thus, the relative error between experimental value and simulation value is 12.5%, which provides an important guidance for the actual production of enterprise.

基金项目：

淮安市重点研发计划（工业及信息化）(HAG201614)

李兵（1983-），男，硕士，讲师；E-mail：spxylb@163.com

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