锻压技术

基于有限元模拟的冲裁毛刺控制方法

英文标题：Control method of blanking burr based on finite element simulation

作者：王晓莉朱晓红穆瑞

单位：连云港职业技术学院

分类号：TG386

出版年,卷(期):页码：2016,41(11):65-70

摘要：

基于板料冲裁过程的分析，提出一种控制冲裁毛刺的方法，即预切冲裁法。利用Deform-2D软件对1.2 mm厚的不锈钢板料AISI304的预切冲裁过程进行有限元模拟，分析了预切冲裁的断面质量及应力分布状况，研究了工艺参数（预切角度、预切深度、冲裁速度、冲裁间隙）与光亮带长度之间的变化关系。模拟结果表明：冲裁件断面的光亮带长度随着预切角度、预切深度及冲裁速度的增加呈现先增大后减小的变化趋势，而随着冲裁间隙的增加则不断减小。预切冲裁法在合理的预切深度范围内（0.2~0.4 mm）实现了冲裁毛刺的控制。此外，利用模具验证了预切冲裁法的实用性，试验值与模拟值的误差为17.78%，该方法有助于提高产品质量。

A method of controlling blanking burr was put forward based on the analysis of blanking process, and it was called pre-cutting blanking. Then, the pre-cutting blanking process for stainless steel AISI304 with the thickness of 1.2 mm was simulated by Deform-2D. Furthermore, the cross-section quality and distribution of stress were analyzed, and the relationship between length of bright region in the cross section of blanking and process parameters (pre-cutting angle, pre-cutting depth, blanking speed and die clearances) was studied. The simulation results show that the length of bright region increases firstly and then decreases with the increase of pre-cutting angle, pre-cutting depth and blanking speed, while it decreases with the increase of die clearances. The control of blanking burr is realized by pre-cutting blanking under a reasonable range of pre-cutting depth (0.2-0.4 mm). In addition, the practicability of pre-cutting blanking is verified by the die, and the error between experiment and simulation is 17.78%. Therefore, the product quality is improved.

基金项目：

连云港市中小企业技术创新项目(CK1411)

王晓莉（1976-），女，硕士，副教授

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