Laser is the laser beam to the surface of the workpiece to the high-energy laser to remove, melting and changing the material properties of objects on the surface. As the laser processing is a non-contact processing, and the tool will not work directly on the surface of the ground inspections have resistance, so the laser processing speed, processing objects smaller heat affected area and will not produce noise. As the laser beam and the beam of energy can adjust the speed, the laser processing can be applied to different levels and scope.


     Laser processing can be roughly divided into photochemical processing and laser thermal processing (or cold). When the laser thermal processing refers to the laser beam to the surface, caused by rapid heating, heat the object or change the characteristics of the material down evaporation. Photochemical machining when a laser beam on the object increases, the density of high-energy photons cause photochemical reactions or control of the process.