OPTIMIZATION OF PROCESS PARAMETERS OF METAL INERT GAS WELDING BY TAGUCHI METHOD ON CRC STEEL IS 513 GR D

GMAW (Gas Metal Arc Welding) was developed during the early 1940’s and technology was taken from the TIG welding process that was already around at the time. MIG (Metal Inert Gas) welding, also known as MAG (Metal Active Gas) and in the USA as GMAW is a welding process that is now widely used for welding a variety of materials, ferrous and non ferrous. Gas metal arc welding is one of the conventional and traditional methods to join materials. In this work we presents Optimization of process parameters of metal inert gas welding by Taguchi method on Bead width and Bead height on CRC steel IS 513 GR ‘D’ material. A plan of experiments based on Taguchi technique has been used. An Orthogonal array (L9), signal to noise (S/N) ratio and analysis of variance (ANOVA) are employed to study and optimize the welding parameters. The result computed is in form of contribution from each parameter, through which optimal parameters are identified for Bead width and Bead