Laser welding is the use of high-energy laser pulses to locally heat materials in a small area. The energy of laser radiation diffuses into the interior of the material through heat conduction, and the material is melted to form a specific molten pool.

Laser welding is a new type of welding method, mainly for the welding of medium and thin wall thickness materials or precision parts, which can realize stitching welding, fillet welding, spot welding, lap welding, sealing welding, etc. Small heat-affected zone, small deformation, fast welding speed, smooth and beautiful weld seam, no need for post-welding treatment or only simple treatment, high-quality weld seam, no porosity, precise control, small focus spot, positioning accuracy High, easy to realize automatic batch welding.