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.
出处
《机械设计与制造》
北大核心
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)
关键词
电塑性拔丝
电流场
温度场
有限元法
Electroplastic Drawing
Current Field
Temperature Field
Finite Element Method
