Evaluate the effect of process parameters on mechanical properties of 6mm thickness SS317L weld joint for receiver application GTAW welding

Abstract

GTAW welding is most important especially welding of stainless steel and aluminum are more difficult to do. Nowadays SS317L materiel is used in top production receiver application in chemical and Pharma Company. That’s why this must have contain good mechanical properties and also resistance to corrosion. For achieving the good mechanical properties of weld ment, the optimal selection of process parameters is very important. For the GTAW welding the most influence input parameter are selected form the ASME section IX. In this work, the effect of different welding parameters like gas flow rate, current and included angle is selected for the project work. The filler wire which is used for the project work that is ER317L for similar welding of SS317L 6mm thickness plate joint. Tensile test and hardness test is done for check the mechanical properties of weld joint respectively. ANOVA is used for finding out the most influencing input parameter on output result. Optimization of selected parameter done by response surface optimizer. After the optimization validate the result obtain. Taguchi L9 orthogonal array in DOE is used for the optimization with MINITAB 17 version is used.