Kumar KS
Dissimilar welding of 316L stainless steel-low carbon ferritic steel joints made using pulsed Nd: YAG laser beam. The laser spot symmetrically focused on the butt joint and offset-ted by 2 μm to stainless steel to obtain the good quality of dissimilar weld. A three dimensional finite element based model developed using comsol code to simulate welding process for these two different laser spot positions. Thermal profile, isothermal surface, and deformation of the dissimilar joints simulated to investigate the temperature distribution across the butt joints. The temperature distribution estimated across the dissimilar joint analytically. The estimated and predicted results exposed the bead width and heat affected zone in dissimilar joints. These results were compared with experiment found that has very close association with each other.
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