• Dr. Ramesh Rudrapati
• Mr. Abhishek Ghosh
• Dr. Pradeep Kumar Pal
• Dr. Goutam Nandi

This paper presents an experimental design approach to process parameter optimization for gas metal arc welding of austenitic stainless steels. Face-centered central composite design of experiments, based on response surface methodology (RSM) has been adopted. The selected input parameters are welding current, gas flow rate and travel speed. The observed output responses of the ultimate tensile strength and percentage elongation under varied conditions have been discussed and interpreted with use of statistical analysis of variance technique. To determine the optimal welding parameters, a set of mathematical models have been developed relating welding process parameters to each of the responses separately by RSM. Response contour plots have been made from developed mathematical models to illustrate the interaction effects of the welding parameters on response variables. Process optimization has been done by desirability approach. Finally, some useful conclusions have been drawn from the study

Gas metal arc welding, Austenitic stainless steels, Response surface methodology, Desirability approach, Process optimization

"DETERMINATION OF GAS METAL ARC WELDING PARAMETERS USING RESPONSE SURFACE METHODOLOGY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.85-92, June-2018, Available :http://www.jetir.org/papers/JETIRC006015.pdf

"DETERMINATION OF GAS METAL ARC WELDING PARAMETERS USING RESPONSE SURFACE METHODOLOGY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp85-92, June-2018, Available at : http://www.jetir.org/papers/JETIRC006015.pdf