AN OPTIMIZATION OF TIG WELDING (SS304) PARAMETERS USING DESTRUCTIVE AND NONDESTRUCTIVE TESTING METHOD

The study has been done by conducting various tests on the TIG welded material, by using the Destructive and Non-destructive Testing Methods. The quality of the welded material has been analysed. The results of the analysis have revealed that the Stainless steel used to weld the joints of grade SS304 using TIG welding with the external factor of application of varying current has exhibited high tensile strength and relatively high hardness on keeping the other parameters such as voltage, speed, gas flow rate, current type, filler diameter constant. Thus, it is concluded that the sample 1 has the better weld quality compared to other samples. The current range used to weld the sample1 is 189-192 Amps. According to these test results, sample1 has a suitable current range for TIG welding using stainless steel of grade 304.