铜铝复合接触线拉拔加工过程的数值模拟  

Numerical Simulation of Drawing Process of Cu-Al Bi-metallic Contact Wire

作　　者：申晓晓[1] 李静媛[1] 杨斌[2] 谢建新[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]江西理工大学材料与化学工程学院,赣州341000

出　　处：《铝加工》2008年第4期17-20,共4页Aluminium Fabrication

基　　金：国家"863"高技术研究发展计划资助项目(2006AA03Z531)

摘　　要：对一种机械啮合式异形截面结构的铜铝复合接触线拉拔加工过程进行了研究,建立了有限元三维数值模型,获得了稳定拉拔状态下的等效应力分布,模拟得到的接触线复合界面存存缝隙。通过改变铝线坯和铜线坯断面几何尺寸,研究了缝隙填充率的变化,获得了优化的铝线坯和铜线坯的形状。Drawing process of Cu-Al hi-metallic contact wire was investigated. Numerical model of three-dimensional finiteelement was established. Equivalent stress distribution at stable drawing stage was obtained. Apertures were existed in contact wire. By changing aluminum alloy and copper wire geometries, the variation of aperture filling fraction was studied and optimal shape of aluminum alloy and copper wire were obtained.

关 键 词：铜铝复合接触线 拉拔 数值模拟 

分 类 号：TG356[金属学及工艺—金属压力加工]