Parametric Optimization of Tig Welding of Aisi 316L Stainless Steel Using Response Surface Methodology

Abstract

The current study intends to evaluate various aspects of GTAW of Austenitic stainless steel AISI 316L. Parametric optimization is one of the project's primary goals. There have been attempts at both single and multi-objective optimization. To achieve the aforementioned goal, an experimental plan is developed. The face-centered central composite design of experiments, based on response surface methods, was employed. After welding, visual inspection, X-ray radiography test, tensile test, and micro-hardness test were performed. The results on ultimate tensile strength, yield strength, and % elongation obtained under various welding circumstances are evaluated. The process has been optimized using response surface methodology.