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Proceedings Paper

Characterization Of The Heat Source Distribution Of A Typical Gtaw Welding Arc
Author(s): M. E. McIlwain; H. B. Smartt; J. A. Stewart; C. J. Einerson
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Paper Abstract

Understanding the influence of fundamental welding parameters on the distribution of the heat flux on the weld and the resulting weld bead morphology has become increasingly important with the escalating emphasis on automated control of the welding process. The arc heat source distribution at the work piece has been studied using the underside infrared signature. Arcs were struck on a thin anode section ranging from 0.5 to 2 mm in thickness. Results from both experiments and calculations suggest that the arc heat input can be readily characterized using the IR thermogram. In addition, other properties such as weld pool cooling characteristics and solidification processes can be determined using this method.

Paper Details

Date Published: 20 March 1985
PDF: 4 pages
Proc. SPIE 0520, Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control, (20 March 1985); doi: 10.1117/12.946138
Show Author Affiliations
M. E. McIlwain, EG&G Idaho, Inc. (United States)
H. B. Smartt, EG&G Idaho, Inc. (United States)
J. A. Stewart, EG&G Idaho, Inc. (United States)
C. J. Einerson, EG&G Idaho, Inc. (United States)


Published in SPIE Proceedings Vol. 0520:
Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control
Andronicos G. Kantsios, Editor(s)

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