模具拐角对工件间推挤式等通道转角挤压技术的影响  

Effect of Die Corner on Pushing Type Equal-channel Angular Pressing Technology Between Workpieces

作　　者：卢予东[1] 许晓静[1] 蒋凌[1] 成城[1] 

机构地区：[1]江苏大学先进制造与现代装备技术工程研究院,江苏镇江212013

出　　处：《热加工工艺》2013年第13期80-83,共4页Hot Working Technology

基　　金：江苏省高校科研成果产业化推进项目(JH10-37);江苏大学拔尖人才培养工程基金项目(1211110001)

摘　　要：运用有限元软件DEFORM-3D研究了ECAP模具拐角对工件间推挤式等通道转角大应变技术的影响。结果表明:载荷的最大值随模具拐角增大而减小;模具拐角是影响工件接触区形变的主要因素;另外,与单个工件等通道转角大应变技术相比,工件间推挤式等通道转角能显著提高工件应变均匀性。The effects of die comer on pushing type equal-channel angular pressing technology for workpieces were investigated by using FE software DEFORM-3D. The results show that the maximum extrusion load decreases with the increase of die comer. The die comer angle is a key factor influencing the deformation of workpieces contacting zone. In addition,compared with single workpiece ECAP process, the workpieces pushing type ECAP can significantly enhance the strain uniformity of the workpieces.

关 键 词：ECAP 工件间推挤式 有限元模拟 

分 类 号：TG376[金属学及工艺—金属压力加工]