Abstract
Arcing-wire gas tungsten arc welding is an innovative process developed as a variant of gas tungsten arc welding to reinforce the deposition rate by utilizing bypass arc energy. After establishing an experimental platform, the experiments were conducted to study the arc characteristics, interaction of the main and bypass arcs, and metal transfer behavior. Magnetic arc blow, location of the bypass arc root, and shielding gas flow were found to cause arc deflection and an invisible obstacle between the arcs in arcing-wire gas tungsten arc welding. The bypass arc voltage should be controlled carefully to maintain the stability of the welding process. Globular transfer, short-circuiting transfer, and continuous bridging transfer could be obtained, which were determined by wire feed speed (the melting current) and the distance from the wire tip to the workpiece as well as the welding direction.
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Wang, H., Hu, S., Wang, Z. et al. Arc characteristics and metal transfer modes in arcing-wire gas tungsten arc welding. Int J Adv Manuf Technol 86, 925–933 (2016). https://doi.org/10.1007/s00170-015-8228-2
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DOI: https://doi.org/10.1007/s00170-015-8228-2