Welding Fundamentals and Processes
Fluid flow is important because it affects weld shape and is related to the formation of a variety of weld defects in gas tungsten arc (GTA) welds. This article describes the surface-tension-driven fluid flow model and its experimental observations. The effects of mass transport on arc plasma and weld pool are discussed. The article reviews the strategies for controlling poor and variable penetration and describes the formation of keyhole and fluid flow in electron beam and laser welds. It also explains the fluid flow in gas metal arc welding and submerged arc welding, presenting its transport equations.
ASM Reference Publications Catalog
The new Fall / Winter 2019-2020 Catalog features more than 200 new and upcoming releases and our popular best-selling titles. Save now with prepublication pricing and set sales.