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Heat and metal transfer in gas metal arc welding using argon and helium
MEFOS − Stiftelsen för Metallurgisk Forskning.
Massachusetts Institute of Technology.
Massachusetts Institute of Technology.
1995 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 26, no 2, p. 383-395Article in journal (Refereed)
Abstract [en]

This article describes a theoretical investigation on the arc parameters and metal transfer in gas metal arc welding (GMAW) of mild steel using argon and helium shielding gases. Major differences in the predicted arc parameters were determined to be due to large differences in thermophysical properties. Various findings from the study include that an arc cannot be struck in a pure helium atmosphere without the assistance of metal vapor, that a strong electromagnetic cathode force affects the fluid flow and heat transfer in the helium arc, providing a possible explanation for the experimentally observed globular transfer mode and that the tapering of the electrode in an argon arc is caused by electron condensation on the side of the electrode. © 1995 The Minerals, Metals & Material Society.

Place, publisher, year, edition, pages
1995. Vol. 26, no 2, p. 383-395
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-12752DOI: 10.1007/BF02660980Scopus ID: 2-s2.0-0029292180OAI: oai:DiVA.org:ri-12752DiVA, id: diva2:972944
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-11-21Bibliographically approved

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Metallurgical and materials transactions. B, process metallurgy and materials processing science
Materials Engineering

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