An Experimental Study on the Effect of MIG Welding Parameters on the Weldability of

ABSTRACT: MIG welding parameters are the most important factors affecting the quality, productivity and cost of welded joint, Weld bead size, shape and penetration depend on number of parameters. Lot of research work has been done regarding the effect of variables on the process. The quality of a welded joint is directly influenced by the welding input parameters Inadequate weld bead dimensions such as shallow depth of penetration may failure of a welded structure since the effect of various welding process parameters on the weldability of galvanized Steel specimen having dimensions 50 mm × 40 mm × 5 mm, welded by metal inert gas welding were investigated. The welding current, arc voltage, welding speed, are chosen as welding parameters. The depth of penetrations were measured for each specimen after the welding operation is done on closed butt joint and the effects of welding speed, current, voltage parameters on depth of penetration were investigated