Gas tungsten arc welding and hybrid laser-TIG welding temperature field analysis of AZ31B magnesium alloy

摘要：

In this particular work, the moving Gauss heat source model based on the gas tungsten arc welding and a new heat source model based on the laser-TIG hybrid welding were developed by the finite element analysis according to the physical characteristic of the TIG welding and the laser-TIG hybrid welding, Taking into account the advice of parameter modification, the modeling was respectively carried out by the single TIG and the laser-TIG hybrid welding for AZ31B magnesium alloy. The welding temperature field and the weld section geometry were simulated separately with regard to dependence on the single TIG and the laser-TIG hybrid welding. Comparing the experimentally measured value with simulated value of the weld section geometry, the simulated and the experimentally determined weld section geometry by the single TIG welding and the hybrid welding showed a good agreement, at the same time, the microstructures of the joint were also discussed respectively.

关键词： TIG welding hybrid welding temperature field weld section geometry AZ31B magnesium alloy microstructure

作者: Guoli Liang Huibin Wu Shaoqiang Yuan Liming Liu

作者单位: Depart.of Electro-Mechanical Engineering, Tanshan College,Tangshan, 063000, China Depart.Of materials physics, University of Science and Technology Beijing, Beijing 100083, China Depart.of Electro-Mechanical Engineering, Tanshan College,Tangshan, 063000, China; Depart.Of Materia

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）