Modeling of Linear Gas Tungsten Arc Welding of Stainless Steel

被引：0
作者：
P. Maran
T. Sornakumar
T. Sundararajan
机构：
[1] Thiagarajar College of Engineering,Department of Mechanical Engineering
[2] Indian Institute of Technology Madras,Department of Mechanical Engineering
来源：
Metallurgical and Materials Transactions B | 2008年 / 39卷
关键词：
Welding; Weld Pool; Welding Speed; Weld Bead; Welding Current;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A heat and fluid flow model has been developed to solve the gas tungsten arc (GTA) linear welding problem for austenitic stainless steel. The moving heat source problem associated with the electrode traverse has been simplified into an equivalent two-dimensional (2-D) transient problem. The torch residence time has been calculated from the arc diameter and torch speed. The mathematical formulation considers buoyancy, electromagnetic induction, and surface tension forces. The governing equations have been solved by the finite volume method. The temperature and velocity fields have been determined. The theoretical predictions for weld bead geometry are in good agreement with experimental measurements.
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页码：619 / 628
页数：9
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