GMAW is one of the best suited techniques widely used in fabrication industry for joining applications. GMAW can be
used in semi-automatic and fully automatic modes as per the requirements. Its portability, versatility, good quality welds and
capability of all position welding makes it a preferred joining process in general job shop as well as mass production units. Given
the popularity and wide applications of this process, it becomes necessary to understand and analyse the performance of the
same under varying conditions of input parameters. One of the weld quality issues that concerns significantly to the fabricators
is of the angular distortion resulting from most of the arc welding processes. Angular distortion occurs during welding as a
result of non-uniform expansion and contraction of the weld and base metal during the weld thermal cycle. In angular
distortion, the stress is transverse to the welding direction and is caused due to shrinkage caused near the fusion zone resulting
in the change .
