中厚度板材冲裁过程中冲裁模具镶块刃口失效有限元分析  

The FAilure Fea Analysis of the Blanking Die Insert Edge in the Middle Thickess Sheet Metal Blanking Proessing

作　　者：刘卉[1] 刘剑[2] 吕洪玉[1] 

机构地区：[1]天津科技大学机械工程学院,天津300222 [2]河北工业大学机械学院,天津300130

出　　处：《现代机械》2007年第3期42-45,共4页Modern Machinery

摘　　要：应用板材成形大变形理论和三维非线性动态显式有限元分析技术,利用ANSYS软件的LS-DYNA模块动态模拟了汽车覆盖件中厚度板材冲裁成形过程,得到了汽车覆盖件冲裁模镶块刃口应力场应变场的分布情况,进而分析了造成铸造模具钢镶块刃口崩刃、塌陷、横裂等失效现象的机理。The sheet-forming large deformation theory and the 3D non-linear Dynamic explicit FEA technique is used to simulate the blanking process of the automotive panels middle thickness sheet based on LS-DYNA module of ANSYS. The distribution of stress field is obtained. So the mechanisms of the failures which cause the tipping and the fissure etc in the blanking processing are analyzed.

关 键 词：模具镶块 刃口 板材冲裁 大变形 动态显式有限元 J 

分 类 号：TG356.1[金属学及工艺—金属压力加工]