Optimization of Process Parameter of TIG Welding of Stainless Steel Plate Using Taguchi method

This work deals with the effects of various process parameters such as peak welding current ,gas flow rate, root face and welding time on metal deposition rate (MDR) of stainless steel plate of SS304 grade by TIG welding. In order to obtain, high welding strength, process parameter optimization plays an important role in welding process by identifying optimum process parameters.The effect of process parameters of TIG welding like weld current, gas flow rate, work piece thickness on the bead geometry of SS304.It is found that the process parameters considered affected the mechanical properties with great extent. Taguchi methodology is used to analyse the effect of each welding process parameters and optimal process parameters which obtained in order to get maximum deposition rate of TIG welded AISI 304 stainless steel Mainly Four input parametercurrent, gas flow rate, face and welding time are select to analyse their effect on the metal deposition rate by changing or varying them.L9 Orthogonal Array technique is used to formulate the experiment layout and various processes. Conclude that the optimal input parameter setting for current, gas flow rate, root face and welding time are 90 amp, 2.0 litre/min, 2mm and 95 second.