Abstract
AbstractStainless steels are being used extensively in fabrication applications due to their unique engineering properties. Metal inert gas (MIG) welding, one of the popular joining processes, is vastly used for the purpose. Weld bead geometry parameters largely decide the strength and performance of the joint in service and are affected by input parameters. The present investigation deals with MIG welding of austenitic grade stainless steel plates in order to develop mathematical models to predict and optimize the weld bead geometry. The experiments were conducted using central composite face-centered design technique. Results were graphically analyzed by response surface methodology (RSM), and model appropriacy was verified by the ANOVA technique. The developed models could predict the two-factor interactive effects of welding parameters on bead width, depth of penetration, and height of reinforcement.KeywordsStainless steel 202MIGBead geometryMathematical modelingANOVARSM
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