Fully automatic fiber laser cutting is mainly used for metal materials
Automatic fiber laser cutting and laser vaporization cutting are mostly used for ultra-thin metal materials and non-metal materials (such as paper, cloth, wood, plastic). When laser melting and cutting, the metal materials are melted by laser heating, and then passed through the beam coaxial The nozzle sprays non-oxidizing gases (Ar, He, N, etc.), and the strong pressure of the gas is used 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 the laser melting cutting of vaporization cutting. Used for cutting some materials that are not easy to oxidize or active metals, such as stainless steel, rubber, etc.). 2) Laser melting and cutting titanium, aluminum and their alloys, etc. 3) Laser oxygen cutting The principle of laser oxygen cutting is similar to oxyacetylene cutting. It 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 the melting cutting, and the cutting speed is much faster than laser vaporization cutting and melting cutting. Laser oxygen cutting is mainly used for easily oxidized metal materials such as carbon steel, titanium steel and heat-treated steel. 4) 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. open. The lasers used for laser scribing are generally Q-switched lasers and C02 lasers. Controlled fracture is the use of the steep temperature distribution generated during laser engraving of sandalwood, which generates local thermal stress in the brittle material, causing the material to break along the small groove.