Numerical simulation of AZ31B magnesium alloy laser-TIG hybrid welding with new heat source model

被引：4

作者：

State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology, Dalian 116024, China ^{[1
]}

机构：

[1] State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology

来源：

Jixie Gongcheng Xuebao | 2006年 / 2卷 / 82-86期

关键词：

Heat source model; Hybrid welding; Magnesium alloy;

D O I：

10.3901/JME.2006.02.082

中图分类号：

学科分类号：

摘要：

A new heat source model of laser-TIG hybrid welding that based on rotary-Gauss body heat source model and Gauss area heat source is established. The model must consider the physical characteristics of material and hybrid welding because two heat sources are not repeated addition simply. On this basis, the numerical simulation of hybrid welding temperature field and welding seam sectional form is performed and the advice of parameter modification is brought forward. Compared with the experimentally measured value, the result shows that the new model can simulate the AZ31 magnesium alloy hybrid welding accurately. The characteristics of hybrid welding including high welding speed, energy increased and narrow heat affected zone are verified by the calculated result of numerical simulation.

引用

页码：82 / 86

页数：4