基于HyperXtrude数值模拟下不同导电率对铝包钢母线成形性能的影响  

Influences of different electric conductivities on formability of aluminum-clad steel bus line based on HyperXtrude numerical simulation

作　　者：孙光进 周建华[1] 刘炎[1] 王文辉 樊志新[2] Sun Guangjin;Zhou Jianhua;Liu Yan;Wang Wenhui;Fan Zhixin(Jiangsu Zhongtian Technologies Co. , Ltd. , Zhongtian Technology Group, Nantong 226000, China;Continuous Extrusion Engineering Research Center of Education Ministry, Dalian Jiaotong University, Dalian 116028, China)

机构地区：[1]中天科技集团江苏中天科技股份有限公司,江苏南通226000 [2]大连交通大学连续挤压教育部研究中心,辽宁大连116028

出　　处：《锻压技术》2018年第4期149-153,共5页Forging & Stamping Technology

基　　金：江苏中天科技股份有限公司技术攻关项目(2017JS035)

摘　　要：基于Hyper Xtrude数值模拟软件,以SLB350连续挤压包覆机为原型,分析了钢丝线径为Φ4 mm,包覆母线导电率分别为20%IACS,30%IACS和40%IACS,其所对应的平均铝层厚度分别为0.32,0.65和1.22 mm时挤压模具定径带处的速度场、温度场和等效应力场的分布情况。结果表明,在钢丝线径一定时,随着导电率的不断增加,铝包钢母线铝层截面面积随之增大,模具定径带处流动速度、温度和等效应力不断下降。最后,分别进行了3种导电率包覆母线同心度检测实验,实验数据与模拟结果一致,证明了此数值模拟可有效指导实际生产。Based on Hyper Xtrude numerical simulation software,for SLB350 type continuous extrusion and cladding machine,the distributions of velocity field,temperature field and equivalent stress field on the calibrating strap of extrusion die were analyzed with the steel wire diameter of Ф4 mm and the electric conductivities of 20% IACS,30% IACS and 40% IACS,which were in correspondence with the average thicknesses of aluminum layer of 0. 32,0. 65 and 1. 22 mm. The result shows that the cross-sectional area of aluminum-clad steel bus line increases with the increasing of electric conductivity when the steel wire diameter is constant,and the velocity,temperature and equivalent stress on the calibrating strap of extrusion die decrease continuously. Finally,the tests of concentricity for cladding bus line with three kinds of electric conductivities were performed. And the data of test coincides with the result of numerical simulation,which proves that the numerical simulation could guide the practical production effectively.

关 键 词：连续挤压包覆 导电率 铝包钢 同心度 HyperXtrude数值模拟 

分 类 号：TG379[金属学及工艺—金属压力加工]