摘要
采用DEFORM-3D有限元分析软件对铜铝接触线拉拔加工过程进行三维数值模拟,得到拉拔过程中等效应力、等效应变及流动速度分布,分析了接触线复合界面产生缝隙的原因以及实际生产中接触线弯曲的原因。通过改变铜线坯断面形状,使铜铝接触线界面结合良好,调整铝侧定径带长度为2 mm、铜侧定径带长度为5 mm,使接触线保持平直,并分析了拉拔模角对拉拔加工工艺的影响。
Drawing process of Cu-A1 contact wire was investigated by DEFORM-3D. The distributions of stress/strain/ velocity field were obtained. Apertures defect and bending phenomena were analyzed. By varying copper wire geometries, a better bonding was get. To keep contact wire straight, the Al sizing belt length should be adjust to 2 mm and Cu sizing belt length to 5 mm. The influence of the angles of drawing die was also analyzed.
出处
《锻压技术》
CAS
CSCD
北大核心
2008年第6期136-140,共5页
Forging & Stamping Technology
基金
国家“863”高技术研究发展计划资助项目(2006AA03Z51)
关键词
铜铝复合接触线
拉拔
数值模拟
Cu-Al contact wire
drawing
numerical simulation