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On arc efficiency in gas tungsten arc welding: Sobre eficiência de arco em soldagem GTAW
University West, Department of Engineering Science, Research Environment Production Technology West. (PTW)
2013 (English)In: Soldagem & Inspeção, ISSN 0104-9224, E-ISSN 1980-6973, Vol. 18, no 4, p. 380-390Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to review the literature on published arc efficiency values for GTAW and, if possible, propose a narrower band. Articles between the years 1955 - 2011 have been found. Published arc efficiency values for GTAW DCEN show to lie on a wide range, between 0.36 to 0.90. Only a few studies covered DCEP - direct current electrode positive and AC current. Specific information about the reproducibility in calorimetric studies as well as in modeling and simulation studies (considering that both random and systematic errors are small) was scarce. An estimate of the average arc efficiency value for GTAW DCEN indicates that it should be about 0.77. It indicates anyway that the GTAW process with DCEN is an efficient welding method. The arc efficiency is reduced when the arc length is increased. On the other hand, there are conflicting results in the literature as to the influence of arc current and travel speed.

Place, publisher, year, edition, pages
Sao Paolo, 2013. Vol. 18, no 4, p. 380-390
Keywords [en]
Gas Tungsten Arc Welding, GTAW, TIG, Arc efficiency, Process parameters, Work-integrated learning, WIL
Keywords [sv]
AIL
National Category
Other Materials Engineering
Research subject
ENGINEERING, Manufacturing and materials engineering; Work Integrated Learning; Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-5840DOI: 10.1590/S0104-92242013000400010ISI: 000330119100010Scopus ID: 2-s2.0-84898009789OAI: oai:DiVA.org:hv-5840DiVA, id: diva2:682782
Available from: 2013-12-30 Created: 2013-12-30 Last updated: 2018-08-09Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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