基于有限元模拟的冲裁毛刺控制方法  

Control method of blanking burr based on finite element simulation

作　　者：王晓莉[1] 朱晓红[1] 穆瑞[1] Wang Xiaoli Zhu Xiaohong Mu Rui(College of Electrical and Mechanical Engineering, Lianyungang Technical College, Lianyungang 222006, Chin)

机构地区：[1]连云港职业技术学院机电工程学院,江苏连云港222006

出　　处：《锻压技术》2016年第11期65-70,共6页Forging & Stamping Technology

基　　金：连云港市中小企业技术创新项目(CK1411)

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,precutting depth and blanking speed,while it decreases with the increase of die clearances. The control of blanking burr is realized by precutting 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.

关 键 词：不锈钢AISI304 板料冲裁 毛刺控制 预切冲裁 Deform-2D 

分 类 号：TG386.2[金属学及工艺—金属压力加工]