凸模圆角半径对板料冲压连接质量的影响规律研究  

Study on influencing rule of punch fillet radius to quality of blank punch bonding joint

作　　者：龚小涛[1] 

机构地区：[1]西安航空职业技术学院,陕西西安710089

出　　处：《锻压装备与制造技术》2015年第2期71-73,共3页China Metalforming Equipment & Manufacturing Technology

基　　金：陕西省教育厅科研计划资助项目(11JK0815)

摘　　要：板料冲压连接质量是衡量冲压连接过程的关键指标。本文采用有限元分析软件Deform-2D对板料冲压连接过程中凸模尺寸对板料流动速度场及连接质量的影响进行了分析,结果表明:板料冲压连接成形过程中,随着凸模圆角的增加,板料S形颈部流动的最大速度及最大和最小速度差值减小,连接点的抗拉强度降低;随着凸模圆角的增加,互锁值降低,抗拉强度减小;颈部厚度增加,剪切强度提高。The finite element analysis software Deform-2D has been adopted to analyze the influence rule of punch fillet radius to velocity field and joint quality during punching process of the plate. The results show that the maximum velocity, the difference between maximum and minimum velocity, and tensile strength of the joint reduce with the increase of punch fillet radius. The thickness of neck and shear strength have been improved while the interlock parameters reduce with the increase of punch fillet radius.

关 键 词：冲压 冲压连接 圆角半径 影响规律 互锁值 颈部厚度 

分 类 号：TG386.1[金属学及工艺—金属压力加工]