Introduction of several cutting processes of metal laser cutting machine
The cutting process of metal laser cutting machine has always been a problem that everyone pays more attention to. Because metal laser cutting machine is currently widely used in many industries, its cutting process has also attracted much attention. Let's take a look together. After summarizing, several cutting processes of metal laser cutting machine are as follows: 1. Oxidation melting cutting: melting and cutting generally use inert gas, if it is replaced by oxygen or other active gas, the material is ignited under the irradiation of the laser beam, and the oxygen is generated. The fierce chemical reaction generates another heat source, which is called oxidative melting and cutting. 2. Controlled fracture cutting: For brittle materials that are easily damaged by heat, high-speed and controllable cutting is performed by laser beam heating, which is called controlled fracture cutting. The main content of this cutting process is: the laser beam heats a small area of u200bu200bthe brittle material, causing a large thermal gradient and severe mechanical deformation in this area, leading to the formation of cracks in the material. As long as a uniform heating gradient is maintained, the laser beam can guide cracks in any desired direction. 3. Vaporization cutting: Under the heating of high-power density laser beam, the speed of the surface temperature of the material rising to the boiling point temperature is so fast that it is enough to avoid melting caused by heat conduction, so part of the material vaporizes into steam and disappears, and part of the material is used as ejection. It is blown away by the auxiliary gas flow from the bottom of the slit. 4. Melting and cutting: When the power density of the incident laser beam exceeds a certain value, the inside of the material at the point where the beam is irradiated will evaporate, forming a hole. Once this small hole is formed, it will act as a black body to absorb all the incident beam energy. The small hole is surrounded by a wall of molten metal, and then the auxiliary airflow coaxial with the beam takes away the molten material around the hole. As the workpiece moves, the small hole moves synchronously in the cutting direction to form a slit. The laser beam continues to irradiate along the leading edge of this slit, and the molten material is continuously or pulsatingly blown away from the slit. Wuhan Gaoneng Laser Equipment Manufacturing Co., Ltd. is a high-tech enterprise integrating Ru0026D, production and sales of professional laser complete sets of equipment. Not only successfully developed laser equipment with advanced technology, but also used self-support import and export rights to promote products to more than 40 global markets including Hong Kong, South Korea, Vietnam, Malaysia, Thailand, Australia, the United States, Japan, Germany, the Netherlands, Jordan, etc. nation.