Parametric Optimization of MIG Welding for MS 5986 Fe 410 using Taguchi Method

The aim of this study is to investigate the optimization process parameters for Metal inert gas welding (MIG). In the present work, bead-on -plate welds were carried out on MS 5986 Fe 410 carbon steel sheets using Gas Metal Arc Welding (GMAW) process. In this present investigation ER70S-6 solid wire having 1.2 mm diameter was used as an electrode with direct current electrode positive polarity. A mixture of argon-carbon dioxide was employed for shielding purposes. The fusion zone is generally characterized by a few geometrical features namely bead width, bead height and depth of penetration. The shape of the fusion zone depends upon a number of parameters such as gas flow rate, voltage, travel speed and welding current. Taguchi Technique is applied to plan the experiments. The weld bead geometry plays an important role in determining the mechanical properties of a weld joint. Therefore, it is important to set up proper welding parameters to produce a good weld bead.