Modeling and Optimization of MIG Process Parameters using RSM

Abstract

Metal Inert Gas welding has been applied in manufacturing industries for more than fifteen
years. Experiments are conducted using RSM design. The weld parameters considered in this
study are welding current, gas flow rate, wire feed speed and nozzle gun inside diameter with
hardness as response. The weld parameters are optimized for better hardness using grey
based Taguchi method.