What are the common laser cutting machine for cutting process

What are the common process of laser cutting machine cutting for easy to heat damage of brittle materials, high speed, controlled by laser beam heating of cut, the cause of the region of thermal gradient and severe mechanical deformation, cracks leads to the formation of a material. Laser beam may guide so long as you keep balanced heating gradient cracks in any direction. Melt cutting generally use inert gas, if replaced with oxygen or other reactive gas, called oxidation melting cutting. When the incident laser power density is more than a certain value, the beam point material internal open mom evaporation, forming holes. With workpiece moving, the hole by the synchronous transverse cutting direction to form a cut seam. To continue along the seam at the forefront of laser beam irradiation, continuous or pulse melting materials from being blown away from the seam.