Abstract
Abstract Cold Metal Transfer (CMT) joining process is a clean and economical process in arc welding, which has higher productivity and good quality when comparing with traditional arc welding processes. The joining process has the characteristics like low heat input and low distortion while welding sheet metals. The influence of correction in arc length on the weld bead geometry of AISI 316L using ER 316L filler wire by a single variable is investigated in this research. The results depict that the effect is non-linear on the joining process. By optimizing the arc length correction full depth of penetration was achieved with low heat input, reduced bead width and top reinforcement. Also the uniaxial test and micro-vickers hardness test results reveal that there was improvement in tensile strength and hardness value. The tensile strength for the best joint was 569 MPa and Vickers hardness value of 210 HV. It was observed that the joints exhibited better strength compared to the base metal for 10% arc length correction.
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