Abstract
This research is to study and to analyze the effect of energy of laser beam to the characteristic of joint of laser welding. The investigation of this relation will be leaded to the optimum of laser welding condition. The characteristics of joint of laser welding are considered such as orderliness of bead profile and defect of welding (i.e., pin hole, incomplete, crack, and leak). The experimental results has been shown that the energy of laser beam lower than 4.8 joules/pulse gives the defect of joint of laser welding while the energy higher than 4.8 joules/pulse gives the good condition of joint of laser welding.
