摘要
研究了精密无飞边冲孔的瞬时间隙和冲孔变形区的材料塑性状态判定参数 ,提出一种瞬时间隙恒定的精密无飞边冲孔工艺 ,确定了弹性变形比能的最大值。讨论了瞬时间隙和塑性状态判定参数对冲孔质量的影响 ,为工程应用和新工艺的研究提供了参考依据。
In this paper, the instantaneous clearance and decision parameter of plastic status on the punching workpiece near the deformed zone to the precise punching without burr is studied and a precise punching process in which the instantaneous clearance in constant is put forward.The maximum value of the elastic deformation specific energy and is determined the effects of the intantaneous clearance and decision parameter of plastic status upon punching quality are analyzed. The paper offers some reference values for the engineering application and the research on a new punching process.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2002年第12期1065-1066,共2页
China Mechanical Engineering
基金
河南省科技攻关项目 (991110 3 5 2 )
关键词
精密冲孔
无飞边冲孔
瞬时间隙
塑性状态
precise punching punching without burr instantaneous clearance plastic status
