Laser processing is the use of a high-intensity laser beam, which is focused by an optical system, to process the workpiece through the relative motion between the laser beam and the workpiece, and to perform drilling, cutting, welding, and cladding on the material. Compared to traditional processing techniques, laser processing has the advantages of wide applicability, small material deformation, high processing accuracy, low energy consumption, low pollution, non-contact processing, and automated processing. Currently, it has become a new manufacturing technology and means.