Abstract
Dissimilar metals welding between SUS304 and A5052 has been carried out by using a pulse YAG laser. Weldable conditions were obtained at spot diameter of 0.2mm. Shear - tensile test was conducted with the joints. Welding area increased with increase in heat input. However, the failure load did not increase with increasing of heat input, but the maximum failure load was obtained at a reasonable welding condition. According to the EDX analysis, intermetallic phase was formed at the interface of the joint. Formation of intermetallic phase was significantly observed for the joint welded with higher heat input and could strongly affects on the strength of the joint.
