Abstract:
20MnMoNi55 is very critical material to weld, as the material is grouped into the P3 category
according to the ASME Standard, which has lower weldability than other steel. The various
parameters affecting the welding of 20MnMoNi55 like welding current, welding speed, voltage,
wire feed rate, stick out etc. should be in optimizing range. In this research paper, the attempt
has been made to optimize the welding process parameters using Design of Experiments with
help of Taguchi method. A number of experiments were performed for finalizing the optimum
range of welding current, welding speed and voltage using Submerge Arc Welding (SAW).
