Fiber laser cutting machine adopts international advanced fiber laser, outputting high-energy intensive laser beam, focusing on the surface of the workpiece, so that the area irradiated by the ultra-fine focusing spot on the workpiece melts and evaporates instantly. Automatic cutting is achieved by moving the spot irradiation position. It is a high-tech equipment integrating advanced fiber laser technology, numerical control technology and precision mechanical technology.

Laser cutting machine is to focus the laser from the laser into a high power density laser beam through the optical path system. The laser beam is irradiated on the surface of the workpiece to make the workpiece reach the melting or boiling point, while the high pressure gas coaxial to the beam blows away the molten or vaporized metal.

As the beam moves relative to the workpiece, it eventually causes the material to form a slit, thus achieving the purpose of cutting.

During the cutting process of laser cutting machine, the beam is focused into a small focal point through the lens of the cutting head, thus achieving high power density at the focal point, with the cutting head fixed on the z-axis. At this point, the heat input from the beam far exceeds the partial heat reflected, conducted or diffused from the material, and the material is rapidly heated to melting and vaporization temperatures. At the same time, the high-speed airflow from the coaxial or non-coaxial side melts and blows the vaporized material out, forming the hole for material cutting. As the focal point moves relative to the material, the hole forms a continuous slit of narrow width, completing the cut of the material. Laser is a type of light that, like other natural light, is produced by the leap of atoms (molecules or ions, etc.). However, it differs from ordinary light in that the laser relies at first only on a very short period of spontaneous emission, and the subsequent process is entirely determined by the excited emission, so that the laser has a very pure color, almost no dispersive directionality, and extremely high luminous intensity and high coherence.

Laser cutting is achieved by applying the high power density energy generated by laser focusing. Under computer control, the laser is discharged by pulsing, thus outputting a controlled repetitive high-frequency pulsed laser, forming a beam of a certain frequency and a certain pulse width. The pulsed laser beam is transmitted and reflected through the optical path and focused on the surface of the object to be processed, forming a tiny, high energy density spot, with the focal spot located near the surface to be processed, melting or evaporating the treated material at instant high temperature. Each high-energy laser pulse instantly sparks a small hole in the surface of the object. Under computer control, the laser processing head and the material to be processed follow a pre-drawn pattern of continuous relative motion and spotting, thereby processing the object into the desired shape.