Large laser cutting processing about laser cutting process

Large laser cutting processing about laser cutting technology of laser cutting technology of energy released when using laser beam to the surface of a steel plate to make stainless steel melting and evaporation. Is the use of the focus of high power density laser beam artifacts, cause the irradiation materials rapidly melting, evaporation and ablation or reach the ignition point, at the same time with the aid of high-speed airflow and beam coaxial blow molten material, so as to realize the workpiece cut open. Laser cutting is one of the hot cutting method. The following is a large laser cutting processing manufacturer of laser cutting technology is analysed. 1, the vaporization cutting. Under the high power density of laser beam heating, the material surface temperature to the boiling point temperature speed is so fast, enough to avoid melting caused by heat conduction, so part of the material vaporized into steam, part of the material as the ejecta from the bottom of the kerf width auxiliary gas flow blown away. 2, melt cutting. When the incident laser power density is more than a certain value, the beam point material internal open mom evaporation, forming holes. Once the holes to form, which will serve as a bold absorb all of the incident beam energy. Hole is surrounded by a wall of molten metal, and then, and beam coaxial auxiliary air holes around the molten material. 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. 3, oxidation melting cutting. Melt cutting generally use inert gases, if replaced with oxygen or other reactive gas, was lit materials under the irradiation of laser beam, and the chemical reaction of oxygen violent and produce another source of heat, called oxidation melting cutting. 4, control fracture cutting. For easy to heat damage of brittle materials, high speed, controlled by laser beam heating cutting, called control fracture cutting. The cutting process is the main content: laser beam heating brittle material is small area, causing the area 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. The above content provided by the large laser cutting processing factory