Arc physics and heat flow in gas tungsten arc welding

Conference · Thu Dec 31 23:00:00 EST 1981

OSTI ID:6881259

Key, J F; Smartt, H B; Chan, J W; McIlwain, M E

The need for a more basic understanding of welding processes has engendered efforts to provide an experimental data base for use in weld process modeling. Work to determine interrelationships of heat source, molten pool, and weld bead geometry is described here, and the sensitivity of these interrelationships to welding variables is discussed. The effects on bead morphology of changing current, welding speed, and filler wire speed, with practical boundaries, are presented as a multivariable plot. A model of the relationship between process parameters and weld bead morphology is presented; the model involves dynamic heat and mass balances in a control volume containing the molten pool.

• Research Organization: Idaho National Engineering Lab., Idaho Falls (USA); Geo-Centers, Inc., Newton Upper Falls, MA (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6881259
• Report Number(s): EGG-M-12082; CONF-821099-1; ON: DE83003727
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ARC WELDING
ELEMENTS
FABRICATION
GAS TUNGSTEN-ARC WELDING
JOINING
METALS
WELDING