Consumable double-electrode GMAW - Part 1: The process

K. H. Li, Y. M. Zhang

Research output: Contribution to journalArticlepeer-review

82 Scopus citations


Double-electrode gas metal arc welding (DE-GMAW) is a novel welding process recently developed to increase welding productivity while maintaining the base metal heat input at a desired low level. In this paper, the DE-GMAW process was improved by replacing its nonconsumable tungsten electrode with a consumable welding wire electrode resulting in a new process called consumable DE-GMAW. To understand this new process and its prospects as an effective manufacturing process, the authors have studied fundamental issues and proposed solutions to resolve the problems encountered. These fundamental issues include the stability of the process, the adjustability of the bypass current, the effects of the bypass arc on the total current and the melting rate, and the mode of metal transfer of the bypass welding wire.

Original languageEnglish
Pages (from-to)11s-17s
JournalWelding Journal (Miami, Fla)
Issue number1
StatePublished - Jan 2008


  • Arc welding
  • Deposition rate
  • Double electrode
  • Dual wire welding
  • Heat input
  • Welding controls
  • Welding productivity

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys


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