Gas Tungsten Arc Welding (GTAW)involves several process parameters. In Pulsed Current GTAW frequency of pulse and pulse to time ratio differentiates the characteristics of weld pool geometry of from GTAW. In the present work a simple heat transfer model for Pulsed Current GTA welding was developed and the weld pool dimensions were experimentally verified with AISI 1020 steel. Relationship between speed and pulsed current frequency on weld pool dimension was studied. Weld pool dimension of pulsed and non-pulsed GTAW is studied. © (2014) Trans Tech Publications, Switzerland.
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A. Prabakaran, R. Sellamuthu, and Dr. Sanjivi Arul, “Heat transfer modelling and investigation of the effect of pulse frequency and current in pulsed current gas tungsten arc welding”, Applied Mechanics and Materials, vol. 592-594, pp. 395-399, 2014.