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轧辊堆焊温度场的动态有限元模拟
引用本文:杜晗婷,陈冰泉,牟军伟,韩方,张正华.轧辊堆焊温度场的动态有限元模拟[J].电焊机,2007,37(11):44-48.
作者姓名:杜晗婷  陈冰泉  牟军伟  韩方  张正华
作者单位:武汉理工大学,材料科学与工程学院,湖北,武汉,430063
摘    要:利用有限元软件对轧辊堆焊温度场进行数值模拟.在模拟过程中,实现焊接移动热源的施加,较好地模拟了焊接电弧移动加热过程以及整个温度场的瞬态变化,考虑了材料热物理性能参数与温度的非线性关系,并以70Cr3Mo的堆焊为例进行了实例计算,计算结果与实测结果相吻合.

关 键 词:焊接温度场  移动热源  非线性热物理性能参数  有限元法
文章编号:1001-2303(2007)11-0044-04
修稿时间:2007-06-04

Dynamic FEM simulation of temperature distribution for rollers hardfacing process
DU Han-ting,CHEN Bing-quan,MU Jun-wei,HAN Fang,ZHANG Zheng-hua.Dynamic FEM simulation of temperature distribution for rollers hardfacing process[J].Electric Welding Machine,2007,37(11):44-48.
Authors:DU Han-ting  CHEN Bing-quan  MU Jun-wei  HAN Fang  ZHANG Zheng-hua
Affiliation:School of Material Science and Engineering WHUT,Wuhan 430070, China
Abstract:Using ANSYS finite element software, the build-up welding temperature field of roller was numerically simulated. In the process of simulation, the application of moving welding heat source was realized;moving and heating process of welding arc and the instantaneous variation of the temperature field were properly simulated;the nonlinear relationship between thermo-physieal property parameters and temperature was taken into consideration.Finally the build-up welding temperature field for 70Cr3Mo was analyzed as an example.The results were in agreement with reality.
Keywords:welding temperature field  moving heat source  nonlinear thermo-physical property parameters  finite element method
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