Modeling of Three-Dimensional Gas Metal Arc Welding with Groove
Abstract
This article analyzes the dynamic process of groove filling and the resulting weld pool fluid flow in gas metal arc welding of thick metals with V-groove. Filler droplets carrying mass, momentum, thermal energy, and sulfur species are periodically impinged onto the workpiece. The complex transport phenomena in the weld pool, caused by the combined effect of droplet impingement, gravity, electromagnetic force, surface tension, and plasma arc pressure, were investigated to determine the transient weld pool shape and distributions of velocity, temperature, and sulfur species in the weld pool. It was found that the groove provides a channel which can smooth the flow in the weld pool, leading to poor mixing between the filler metal and the base metal, as compared to the case without a groove.
Recommended Citation
J. Hu and H. Tsai, "Modeling of Three-Dimensional Gas Metal Arc Welding with Groove," Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition (2007, Seattle, WA), American Society of Mechanical Engineers (ASME), Nov 2007.
Meeting Name
2007 ASME International Mechanical Engineering Congress and Exposition, IMECE 2007 (2007: Nov. 11-15, Seattle, WA)
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
V-Grooves; Gas metal arc welding
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2007 American Society of Mechanical Engineers (ASME), All rights reserved.
Publication Date
15 Nov 2007
