Arc instabilities during split anode calorimetry with the TIG welding process

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dc.contributor.authorEgerland, Stephan
dc.contributor.authorColegrove, Paul A.
dc.contributor.authorWilliams, Stewart W.
dc.date.accessioned2018-12-18T12:23:04Z
dc.date.available2018-12-18T12:23:04Z
dc.date.issued2018-03-29
dc.description.abstractSplit anode calorimetry investigations of tungsten inert gas (TIG) arcs were conducted using a large-diameter shielding gas nozzle. Some conditions displayed arc symmetry whilst others proved distinctly asymmetric. The variation of welding current and electrode tip to workpiece distance (ETWD) was studied. Decreasing the ETWD was found to increase the current density towards the arc axis but similar to a previous study of the authors, Gaussian distributions were not observed. The gas nozzle was designed to produce laminar gas flow and sound shielding behaviour; however, anode surface oxidation was found after welding, presumably caused by shielding gas contaminated with oxygen through the welding sequence. Therefore, axial arc symmetry was influenced by random effects. The conditions and reasons for the observed phenomena are explored within this paper.en_UK
dc.identifier.citationStephan Egerland, Paul Colegrove and Stewart Williams. Arc instabilities during split anode calorimetry with the TIG welding process. Welding in the World, June 2018, Volume 62, Issue 4, pp. 831–845en_UK
dc.identifier.issn0043-2288
dc.identifier.urihttps://doi.org/10.1007/s40194-018-0588-4
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13751
dc.language.isoenen_UK
dc.publisherSpringeren_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectCopper oxide layeren_UK
dc.subjectShielding gas nozzleen_UK
dc.subjectEnergy densityen_UK
dc.subjectTIG weldingen_UK
dc.subjectSplit anode calorimetryen_UK
dc.titleArc instabilities during split anode calorimetry with the TIG welding processen_UK
dc.typeArticleen_UK

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