Laser welding is an efficient and precise welding method which uses high energy density laser beam as heat source.

Laser welding is one of the important aspects of laser material processing technology. The welding process belongs to the heat conduction type, the laser radiation heats the workpiece surface, and the heat on the surface diffuses through the heat transfer guide. By controlling the width, energy, peak power and repetition frequency of laser pulse, the workpiece is melted to form a specific molten pool. Laser welding is a new type of welding method. Laser welding mainly aims at the welding of thin-walled materials and precision parts, which can realize spot welding, butt welding, stack welding, seal welding, etc.,