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Fig. 5.3 Schematic of GMAW process
Fig. 5.4 Schematic of SMAW process
metal from getting contaminated by the atmosphere [11]. The parameters governing
the weld quality are edge preparation, angle of electrode oscillation and movement,
direction and position of the welding, etc. It is employed to weld various grades of
steel, cast iron, copper, nickel, and aluminium alloys. This method has been also
utilized for welding dissimilar metals [19, 20]. The factors posing challenges in
joining dissimilar materials are the formation of residual stresses in the weldment