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Classification of working principles of different Laser cutting machines

Classification of working principles of different Laser cutting machines

(Summary description)Laser cutting machine is a machine equipment that uses laser technology for cutting. This type of equipment is now used in many places, and this type of equipment uses a laser.

Classification of working principles of different Laser cutting machines

(Summary description)Laser cutting machine is a machine equipment that uses laser technology for cutting. This type of equipment is now used in many places, and this type of equipment uses a laser.

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Laser cutting machine is a machine equipment that uses laser technology for cutting. This type of equipment is now used in many places, and this type of equipment uses a laser. The laser is a beam with very strong releasing ability, and the laser can realize very fast cutting in a short time. Laser cutting machine is very labor-saving and time-saving. Do you know the principle of Laser cutting machine? Laser cutting machine uses a focused high-power density laser beam to irradiate the workpiece to quickly melt, vaporize, ablate or reach the ignition point of the irradiated material. At the same time, it uses a high-speed airflow coaxial with the beam to blow away the molten material to achieve the workpiece Cut open. Laser cutting is one of the thermal cutting methods. Laser cutting can be divided into four categories: laser vaporization cutting, laser melting cutting, laser oxygen cutting, and laser scribing and controlled fracture. Here is a brief introduction to the working principles of different Laser cutting machines.

 

Classification and introduction of working principles of different Laser cutting machines:

1. Laser vaporization cutting

The Laser cutting machine uses high-energy density laser beams to heat the workpiece, so that the temperature rises rapidly, reaching the boiling point of the material in a very short time, and the material begins to vaporize and form vapor. The jetting speed of these vapors is very high, and at the same time as the vapor jets, cuts are formed in the material. The heat of vaporization of materials is generally very large, so a large power and power density are required for laser vaporization and cutting. This type of Laser cutting machine is mostly used for cutting thin metal materials and non-metal materials.

2. Laser melting and cutting

When the Laser cutting machine performs melting and cutting, the metal material is melted by laser heating, and then non-oxidizing gas (Ar, He, N, etc.) is sprayed through the nozzle coaxial with the beam, and the liquid metal is discharged by the strong pressure of the gas to form incision. Laser melting and cutting do not need to vaporize the metal completely, and the energy required is only 1/10 of that of vaporized cutting. Laser cutting machine is mainly used for cutting some materials or metals that are not easily oxidized, such as stainless steel, titanium, aluminum and their alloys.

3. Laser oxygen cutting

The principle of laser oxygen cutting is similar to oxyacetylene cutting. This type of Laser cutting machine uses laser as a preheating heat source and oxygen and other gases as cutting gas. On the one hand, the blown gas reacts with the cutting metal to cause oxidation reaction and release a large amount of oxidation heat; on the other hand, the molten oxide and melt are blown out of the reaction zone to form an incision in the metal. Since the oxidation reaction in the cutting process generates a lot of heat, the energy required for oxygen cutting by the Laser cutting machine is only 1/2 of the melting and cutting, and the cutting speed is much faster than the laser vaporization and melting cutting.

4. Laser scribing and control fracture

Laser scribing is a Laser cutting machine that uses a high-energy density laser to scan the surface of the brittle material, so that the material is heated to evaporate a small groove, and then a certain pressure is applied, and the brittle material will crack along the small groove. Controlled fracture is the steep temperature distribution produced by the Laser cutting machine when laser cutting grooves are used to produce local thermal stress in the brittle material, causing the material to break along the small groove.

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© 1999-2018 All Rights Reserved 

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