This paper describes the optimization of process parameters like
current, voltage, stand-off distance, pulse on time, pulse off time and weld speed, gas flow to improve weld quality. In this work
Taguchi method is used to get the optimal parameters. In Taguchi method, L27 orthogonal array is used for experimentation.
Further, the experimental values and the various settings of the process parameters are fed as input to Taguchi and hence the S/N
ratio values are obtained. Weld speed and input current are found to be the most significant parameters. Finally, the strength of
the weld is validated by tensile and bending test.