Effect of Process Parameters on Bead Penetration in Saw (sub-merged arc welding) using Taguchi L9 Array

Submerged Arc Welding is one of the major welding processes in industry because of its inherent advantages, including deep penetration and a smooth bead. The research on controlling metal transfer modes in SAW process is essential to high quality welding procedures. Quality has now become an important issue in today's manufacturing world. Experiments are conducted using submerged arc welding process parameters viz. welding current, arc voltage and welding speed (Trolley speed) on steel plate IS2062, Gr.B of 10 mm thickness, to study the effect of these parameters on depth of penetration. The experiments are designed using Taguchi method (with Taguchi L9 orthogonal array) considering three factors and three levels.