轧辊堆焊温度场的动态有限元模拟  

Dynamic FEM simulation of temperature distribution for rollers hardfacing process

作　　者：杜晗婷[1] 陈冰泉[1] 牟军伟[1] 韩方[1] 张正华[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430063

出　　处：《电焊机》2007年第11期44-48,共5页Electric Welding Machine

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。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.

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 

分 类 号：TG455[金属学及工艺—焊接]