Hand held laser welding uses high-energy laser pulse to locally heat the welding pulse area required by the material, so that the energy can be guided to the internal diffusion of the material through heat transfer, and the material will be melted to form a specific molten pool.

Due to the special energy output, the weld width is small, the heat affected zone is small, the deformation is small, the welding speed is fast, the weld is flat and beautiful, there is no need for treatment or simple treatment after welding, the weld quality is high, there are no pores, and the focus light spot is small。