Abstract
The present investigation focuses on the optimization of the process parameters of TIG welding process. Stainless steel AISI 304 has been taken as a base metal having dimensions of length 200 mm width 50 mm and thickness 3 mm, which is butt-welded by the TIG welding process. Selection of input parameters is based on their significant effect on the mechanical properties of weld structure. The selected process parameters are Current, Voltage, Root gap and Gas flow rate. The number of experiments carried out is 27, which is designed by Taguchi L27 orthogonal array methodology using 4 factors and 3 levels by MINITAB-17 software. The final weld quality was checked by conducting bend strength test.
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