负间隙冲裁与普通冲裁的冲裁力研究  

Comparison on the punching force of negative clearance blanking and common blanking

作　　者：李建华[1] 张忠美[1] 

机构地区：[1]中原工学院机电学院,河南郑州450007

出　　处：《模具工业》2009年第1期16-19,共4页Die & Mould Industry

基　　金：河南省基础研究项目(0311051000)

摘　　要：用实验的方法对凸、凹模负间隙冲裁与普通冲裁的冲裁力曲线进行了分析,发现负间隙冲裁冲裁力曲线与普通间隙冲裁冲裁力曲线差异很大,解释了冲裁力曲线的变化规律,得出了冲裁力与凸、凹模间隙值的变化关系,总结了影响冲裁力的因素,对了解负间隙冲裁冲裁力的变化规律与模具设计有一定的指导意义。Through experiments and analysis on the blanking and common blanking, we found that the large. The variation law of punching force curves punching force curves of negative clearance difference between the two curves was very was explained and the relationship between punching force and clearance between punch and die was obtained. The influencing factors of punching force were also summarized.

关 键 词：负间隙 冲裁力 凸、凹模间隙 

分 类 号：TG385.2[金属学及工艺—金属压力加工]