1 M Tech Student, Shree Krishan Institute of Engg. &Technology Kurukshetra, Haryana, India
2Assistant professor, Shree Krishan Institute of Engg. &Technology, Kurukshetra, Haryana, India
3Assistant professor, Shree Krishan Institute of Engg. &Technology, Kurukshetra, Haryana, India
Welding is widely used by manufacturing engineers and Production personnel to quickly and effectively set up manufacturing processes for new products. This study discusses an investigation into the use of Taguchi's Parameter Design methodology for Parametric Study of Gas Metal Arc Welding of Stainless Steel & Low Carbon Steel. In this research work, bead on plate welds were carried out on AISI 304 & Low Carbon Steel plates using gas metal arc welding (GMAW) process. Taguchi method is used to formulate the experimental design. Design of experiments using orthogonal array is employed to develop the weldments. The input process variables considered here include welding current, welding voltage & gas flow rate. A total no of 9 experimental runs were conducted using an L9 orthogonal array, and the ideal combination of controllable factor levels was determined for the hardness to calculate the signal-to-noise ratio. After collecting the data signal-to-noise (S/N) ratios were calculated and used in order to obtain optimum levels for every input parameter. Subsequently, using analysis of variance (ANOVA) the significant coefficients for each input parameter on tensile strength & Hardness (PM, WZ & HAZ) were determined and validated.
Dissimilar metals welding, GMA welding, Taguchimethod, optimal parameters, hardness
