Characterization Of The Heat Source Distribution Of A Typical Gtaw Welding Arc

M. E. McIlwain; H. B. Smartt; J. A. Stewart; C. J. Einerson

doi:10.1117/12.946138

20 March 1985 Characterization Of The Heat Source Distribution Of A Typical Gtaw Welding Arc

M. E. McIlwain, H. B. Smartt, J. A. Stewart, C. J. Einerson

Proceedings Volume 0520, Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control; (1985) https://doi.org/10.1117/12.946138
Event: 1984 Cambridge Symposium, 1984, Cambridge, United States

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.

Citation Download Citation

M. E. McIlwain, H. B. Smartt, J. A. Stewart, and C. J. Einerson "Characterization Of The Heat Source Distribution Of A Typical Gtaw Welding Arc", Proc. SPIE 0520, Thermosense VII: Thermal Infrared Sensing for Diagnostics and Control, (20 March 1985); https://doi.org/10.1117/12.946138

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