Characteristics of Light Alloy/ Steel Dissimilar Metals Joint by the Longitudinal Electromagnetic Hybrid TIG Welding - Brazing Method--II. Numerical Simulation Research

Abstract

In order to investigate effects of applied longitude magnetic field on the plasma in welding process, velocity and temperature distribution in argon Gas Tungsten Arc (GTA) plasma during welding is predicted by numerical simulation with and without applied magnetic field. Our results showed that arc plasma expand in the bottom and shrink in the upper part as a result of the Lorentz force induced by the longitude magnetic field. The arc plasma velocity also expands because the Lorentz force.