楔横轧轧件断面收缩率对金属流动的影响  

Influence of Area Reduction of Part on Metal Flow in Cross Wedge Rolling

作　　者：杨翠苹[1] 张康生[1] 杜惠萍[1] 胡正寰[1] 

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《中国机械工程》2004年第20期1868-1870,共3页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 ( 5 0 0 3 5 0 10 )

摘　　要：采用三维弹塑性有限元模拟方法 ,研究轧件的附加变形———扭转变形、轴向拉伸不均匀变形和端面凹心随断面收缩率的变化规律 ,得到了在断面收缩率为 35 %左右时 ,轧件的附加变形最大的结论 。Three-dimension elasto-plastic finite element method was adopted, the trends that the additional deformation including torsion, inhomogeneous tension along axial direction and concavity on the end of part changes as area reduction ratio increases have been studied. The conclusion is drawn that the additional deformation reaches peak value near 35% area reduction ratio. The results of concavity on the end of part obtained from finite element simulation were validated through rolling experiments.

关 键 词：楔横轧 有限元 金属流动 变形 

分 类 号：TG335.19[金属学及工艺—金属压力加工]