凸模圆角半径对钢板冲压成形的影响  

The Effect of Punch Radius on Forming of GA Steel Sheet

作　　者：陈新平[1] 李川海[1] 夏炜[1] 任东来[2] 胡峰[2] 

机构地区：[1]宝山钢铁股份有限公司,上海201900 [2]东风汽车有限公司乘用车公司,广东广州510800

出　　处：《锻压装备与制造技术》2005年第2期74-76,共3页China Metalforming Equipment & Manufacturing Technology

摘　　要：圆角半径的确定一直是冲压件工艺设计的关键技术,本文采用实验与理论模型相结合的手段,研究了凸模圆角半径对钢板冲压成形的影响。结果表明:冲压成形中的开裂位置和凸模圆角大小有关;圆角处的减薄率基本上与相对圆角半径R/t成反比;极限成形高度随凸模圆角半径的增大而增大。The effect of punch radius on forming of steel sheet has been investigated by testing and theoretic analysis.The research results have shown that the crack location was relative to the punch radius size.The thinning ratio of steel sheet located on radius was inverse proportional to the ratio of radius and thickness R/t.The limit dome height increased with the increase of punch radius.

关 键 词：冲压成形 凸模 钢板 相对圆角半径 关键技术 工艺设计 理论模型 成形高度 冲压件 减薄率 增大 

分 类 号：TG386.41[金属学及工艺—金属压力加工] TG385.2