Comparison between methods measuring arc efficiency of gas tungsten arc welding

Shoji Fujiyama, Masaya Shigeta, Manabu Tanaka

Research output: Contribution to journalArticlepeer-review

Abstract

Experimental methods measuring arc efficiency of gas tungsten arc welding (GTAW) to a base metal are compared in order to understand heat transfer of GTAW with and without motion of welding torch. Taking the effect of heat loss into account, arc efficiency measurements of GTAW moving at constant velocity are conducted. From a perspective of thermal conduction in a base metal, it is suggested that the temperature gradient inside the base metal affects arc efficiency and that arc efficiency measured by water-cooling copper anode also depends on thermal conduction inside the anode.

Original languageEnglish
Pages (from-to)371-376
Number of pages6
JournalScience and Technology of Welding and Joining
Volume26
Issue number5
DOIs
Publication statusPublished - 2021

Keywords

  • Gas tungsten arc welding
  • arc efficiency
  • heat input
  • heat transfer
  • liquid nitrogen
  • thermal conduction
  • thermal efficiency

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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