Working principle of a laser cutting machine is a laser beam emitted from a laser, which is focused by a light path system into a laser beam of high-power density. The laser beam is irradiated onto the surface of the workpiece to bring the workpiece to a melting point or boiling point, while the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the beam moves relative to the workpiece, the material is finally slit, thereby achieving the purpose of cutting.
Laser cutting processing replaces traditional mechanical knives with invisible beams. It has advantages as high precision, fast cutting speed, no cutting pattern limitation, saving materials by automatic typesetting, smooth cutting, low processing cost, etc. Laser cutting machine will gradually improve or replace traditional metal cutting process equipment. The mechanical part of the laser cutter head has no contact with the workpiece, and it will not scratch the surface of the workpiece during operation. The laser cutting speed is fast, the slit is smooth and flat, and generally no subsequent processing is required. The cutting heat affected zone is small, the sheet deformation is small, and the slit is narrow (0.1mm~0.3mm). No mechanical stress in the incision, no shear burr. High processing precision, good repeatability. No damage to the surface of the material.