Analysis of the working principle of laser cutting machine

Analysis of the working principle of laser cutting machine
Laser cutting machine is a high-precision and high-efficiency cutting equipment widely used in metal processing, automotive manufacturing, aerospace and other fields. It achieves precise cutting of materials by focusing high-energy laser beams onto the surface of the material, causing local instantaneous melting or gasification of the material.
The working principle of a laser cutting machine mainly includes three processes: beam generation, focusing, and material processing. Firstly, the laser produces a high-energy laser beam, which is typically made of carbon dioxide, fiber optics, or crystal materials. Then, through a series of lenses and mirrors, the laser beam is precisely focused onto a very small point, resulting in a very high energy density of the laser. Finally, when the laser is irradiated onto the surface of the material, due to the extremely high energy density of the laser, the material will be heated to a molten or vaporized state in a very short time, thereby achieving rapid cutting of the material.
In the process of laser cutting, material removal is mainly achieved through two methods: evaporation and melting. For some easily melted materials, such as plastics and thin metal plates, lasers can directly melt them and blow them away with auxiliary gases; For some refractory materials, such as thick metal plates, lasers need to gradually remove the material through multiple scans. In addition, in order to improve cutting quality and efficiency, parameters such as laser power, speed, and focal position can be adjusted as needed.https://www.mhtcnc.com/product/g-series-single-platform-cutting-machine/