Numerical Analysis of Arc Plasma with Metal Transfer in GMAW

Yoshinori Hirata; K. Ohnishi

doi:10.4028/www.scientific.net/MSF.580-582.359

Paper Titles

An Efficient Welding Method to Control the HAZ Softening of Ultra Fine Grained Steel Weldment
p.343

Selection of the GTAW-Flux Process Parameters on Type 310 Stainless Steel via a Taguchi-Neural Approach
p.347

Effect of Probe Thread on Friction Spot Joint Strength of AZ31 Mg Alloy
p.351

Laser-Arc Hybrid Welding Process of Galvanized Steel Sheets
p.355

Numerical Analysis of Arc Plasma with Metal Transfer in GMAW
p.359

Optimization of Electric Resistance Welding Conditions in Small Diameter X60 Pipes for HIC Resistance
p.363

Advanced Resistance Spot Welding Technologies: New Machine, Adaptive Control and FEM Simulation
p.367

Friction Stir Lap Joining of AC4C Cast Aluminum Alloy and Zinc-Coated Steel
p.371

An Evaluation Approach for Prediction of Process Parameters with Genetic Algorithm
p.375

HomeMaterials Science ForumMaterials Science Forum Vols. 580-582Numerical Analysis of Arc Plasma with Metal...

Numerical Analysis of Arc Plasma with Metal Transfer in GMAW

Abstract:

A numerical model of time-dependent gas shielded metal arc is described, which was developed in order to make clear the kinetics of arc plasma together with metal transfer. It is possible to calculate and visualize time-dependent temperature and fluid flow field of argon shielded metal arc plasma with the grow-up and the subsequent detachment of the liquid metal drop at the wire tip. Numerical calculation shows that the arc shape in globular transfer abruptly changes at the moment of metal drop detachment. Whereas, the spray transfer arc seems to be stable and almost does not fluctuate with metal transfer.