A laser cutting machine focuses the laser emitted by the laser into a high-power laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing it to reach the melting or boiling point, while the high-pressure gas coaxial with the beam blows away the molten or vaporized metal.

As the beam of light moves relative to the workpiece, it ultimately forms a slit in the material, thereby achieving the purpose of cutting.

During the cutting process of a laser cutting machine, the beam of light is focused into a small focal point through the lens of the cutting head, achieving high power density at the focal point. The cutting head is fixed on the z-axis. At this point, the heat input by the beam far exceeds the heat reflected, transmitted, or diffused by the material, and the material quickly heats up to the melting and vaporization temperatures. At the same time, the Jet stream from the coaxial or non coaxial side will melt and blow out the vaporized material, forming a hole for material cutting. As the focus moves relative to the material, the hole forms a narrow continuous slit, completing the cutting of the material. Laser is a type of light that, like other natural light, is generated by the transitions of atoms (molecules or ions, etc.). But it is different from ordinary light. At the beginning, the laser only depends on a very short period of spontaneous emission, and the subsequent process is completely determined by Stimulated emission. Therefore, the color of the laser is very pure, with almost no divergence direction, and extremely high luminous intensity and high consistency.

Laser cutting is achieved by applying high power density energy generated by laser focusing. Under the control of a computer, the laser emits controlled repetitive high-frequency pulses through pulse discharge, forming a beam of light with a certain frequency and pulse width. Pulse laser beams are transmitted and reflected through the optical path, focusing on the surface of the processed object, forming small, high-energy density light spots. The focal spot is located near the surface to be processed, melting or evaporating the processed material at instant high temperatures. Each high-energy laser pulse will instantly eject a small hole on the surface of the object. Under the control of a computer, the laser processing head and the processed material move continuously relative to and dot according to the pre drawn pattern, thereby processing the object into the desired shape.