• P Surendra
• B Krishna Murthy
• M V Kiran Kumar

Metal Inert Gas (MIG) welding is the most widely used welding process in the small scale industries, as well as domestic house hold purpose because of its versatility and flexibility. In manual welding operation, the welder has to have control over the welding parameters which affect the weld penetration, bead geometry and overall weld quality. The welding parameters are welding current, welding voltage, Gas flow rate. ASTM A36 mild steel plates are joined by MIG welding process at different values of input parameters by using L9 orthogonal array in taguchi method. In taguchi method design of experiment technique is used to find out optimal welding parameters. The analysis of signal to noise ratio is done using MINITAB 18 software. An orthogonal array and signal to noise (S/N) ratio are employed to optimize the welding parameters. In this paper it is found that influence of Current, Voltage and Gas flow rate on Tensile strength of welded joint. The tensile strength of metal joints has investigated. Finally suggested the optimal combination of input parameters based on software results.

Metal Inert Gas (MIG), MINITAB 18, Taguchi Technique, Welding Current, Welding Voltage, Gas Flow Rate.

"OPTIMIZATION OF PROCESS PARAMETERS FOR MIG WELDING ON ASTM A36 MILD STEEL PLATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.447-455, April-2019, Available :http://www.jetir.org/papers/JETIR1904J58.pdf

"OPTIMIZATION OF PROCESS PARAMETERS FOR MIG WELDING ON ASTM A36 MILD STEEL PLATE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp447-455, April-2019, Available at : http://www.jetir.org/papers/JETIR1904J58.pdf