Abstract
MIG welding process has gained prominence over the past few decades owing to its versatility, portability, all position weldability and ease of automation. These attributes of MIG welding make it suitable for usage in fabrication and automotive sectors over the other conventional welding processes. The present work is aimed to study the effects of varying the controllable input parameters on the weld bead shape, obtained by MIG welding on Stainless Steel-304. Statistical technique of Design of Experiments has been used for systematic and structured way of experimentation. The linear two factor interactive and quadratic effects of welding parameters and the response on the parameters work predicted by developing mathematical models by using center composite rotatable design technique. ANOVA analysis was carried to check the adequacy of the developed models. Response surface methodology was used to analyze the effects of input variables on the outputs through graphical means.
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