Fast cutting speed of automatic fiber laser cutting

by:Lxshow     2021-05-25

Fully automatic fiber laser cutting. Laser vaporization cutting uses a high-energy density laser beam to heat the workpiece, causing the temperature to rise rapidly, reaching the boiling point of the material in a very short time, and the material starts to vaporize to 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. Laser vaporization cutting is mostly used for extremely thin metal materials and non-metal materials (such as paper, cloth, wood, plastic and laser melting and cutting, using laser heating to melt the metal material, and then spraying non-oxidizing gas through a nozzle coaxial with the beam (Ar, He, N, etc.), relying on the strong pressure of gas to discharge the liquid metal to form an incision. Laser melting cutting does not require complete vaporization of the metal. The only energy required is vaporization cutting. Laser melting cutting is mainly used for some materials that are not easily oxidized. Or active metal cutting, such as stainless steel, rubber, etc.) cutting. Laser melting and cutting titanium, aluminum and its alloys, etc. Laser oxygen cutting The principle of laser oxygen cutting is similar to oxyacetylene cutting.

Fully automatic fiber laser cutting uses a laser as a preheating heat source and an active gas such as oxygen as the 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 laser oxygen cutting is only 1/2 of that of melting cutting, and the cutting speed is much faster than laser vaporization and melting cutting. Laser oxygen cutting is mainly used for easily oxidized metal materials such as carbon steel, titanium steel and heat-treated steel. Laser scribing and controlled fracture. Laser scribing uses a high-energy density laser to scan the surface of brittle materials, 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.

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