Effect of wire feed speed and arc length on weld bead geometry in synergistic controlled pulsed MIG/MAG welding

Abstract Arc welding is one of the most commonly applied methods in the welded manufacturing industry. The pulse MIG/MAG welding method (GMAW-P) was developed to prevent problems that may occur in the weld bead due to high heat input to the base metal during the feeding of the weld metal in MIG/MAG welding applications. The synergistic controlled welding machines have been developed that facilitate the selection of welding parameters and provide simultaneous feeding of pulsed welding wire by adjusting the variables to the most appropriate values relative to each other. Weld bead geometry is greatly influenced by welding process parameter, i.e., welding speed, welding current, shielding gas flow rate, voltage, arc travel speed, type of shielding gas, etc. In this study, steel welding samples in T-joint shape were produced with synergistic controlled GMAW-P. The effect of welding parameters on weld bead geometry was investigated. As a result of this study, it was determined that increases in weld wire feed speed, arc voltage, and welding current increased weld depths of penetration and weld bead thickness.