电塑性拔丝加电装置的数值模拟研究  

Numerical Simulation Research of Conduction Mechanism of Metal Wire and Electrode in Electroplastic Drawing

作　　者：李大龙[1,2] 于恩林[2,1] 刘周同[3] 

机构地区：[1]燕山大学机械工程学院,秦皇岛066004 [2]燕山大学国家冷轧板带装备及工艺工程技术研究中心,秦皇岛066004 [3]洛阳有色金属加工设计研究院,洛阳471003

出　　处：《机械设计与制造》2012年第10期176-178,共3页Machinery Design & Manufacture

基　　金：河北省教育厅科学研究重点项目(ZH2007111);河北省教育厅博士基金项目(B2001214)

摘　　要：以ANASYS和MARC有限元软件为平台,对电塑性拔丝过程中丝材的电流场和温度场进行了模拟仿真。通过分析电流场的模拟结果,研究了影响电极与丝材接触面上电流集中程度的各项因素和它们对丝材上电流非均匀分布区长度的影响规律;通过分析摩擦热、焦耳热和变形热的模拟结果,研究了不同电极与模具间距时丝材上的最大温升情况。研究结果为定量地分析电塑性拔丝过程中丝材的电流场和温度场提供了方法,同时也为确定合理的电塑性拔丝加电装置提供了理论依据。The current field and temperature field in electroplastic drawing process were simulated by using ANASYS and MARC finite element analysis software.Through the analysis of current field,the fac- tors affecting the degree of current concentration on the contact surface between electrode and wire ,and the law of influence on the region with current non-uniform distribution are studied.By analyzing the tempera- ture field,the maximum temperature rise with different electrode-die spacing of the wire has been re- searched.Above-mentioned investigation results can provide approach for quantitative study oft he current field and t＇emperature field,and give theoretical evidence for defining conduction mechanism for electro- plastic drawing.

关 键 词：电塑性拔丝 电流场 温度场 有限元法 

分 类 号：TH16[机械工程—机械制造及自动化] TM243[一般工业技术—材料科学与工程]