Analysis of TIG Welding Process Parameters for Stainless Steel (SS202)

Gurudatt Ghadi, Dr. Shivakumar S.

TIG welding, Stainless steel specimen (SS 202), Full factorial Design, Gas flow rate.

The aim of this project work is Analysis of TIG welding parameters of Stainless Steel (SS 202) material used in the manufacturing of Heat Exchanger and Pressure vessel by TIG welding process, in which various input process parameters within the range of value are carried out and characteristics of output parameters are analyzed. Gas Tungsten Arc Welding (GTAW) process is commonly applied to a wide range of metals which uses non-consumable tungsten electrode. Stainless steel specimen (SS 202) of 6mm thickness used in the manufacturing of heat exchanger and pressure vessel is selected. Full factorial Design method is used to formulate the experimental layout to rank the welding input parameters which affects the quality of weld and is influenced by the input parameters such as current, gas flow rate followed by diameter of filler wire. The weldments are studied for tensile test, Bending test, Hardness test to find qualitative properties. The percentage contribution of each input parameter and prediction of tensile strength, bending strength and BHN is found by Full factorial Design.

10.22161/ijaers/3.10.13