Laser cutting machine laser cutting method

Laser cutting machine, laser cutting is one of a method of thermal cutting, laser cutting is the use of the high power irradiation on the parts, after focusing on a series of chemical reactions is material melt cutting effect thereby. Laser cutting has the cut classification, such as vaporization, melting and oxidation can choose according to different material of different ways of cutting. 1, laser vaporization cutting laser vaporization cutting is using high energy density of laser beam on the workpiece heated, the temperature rise, and in a very short period of time for the material vaporized into steam, when these steam jet will form a incision on material, thus reach the cutting effect. But the general material vaporization heat is very big, so the material should be used when heated high power laser beam. Laser vaporization cutting materials used in general have a very thin metal materials and nonmetal materials. 2, laser fusion cutting laser fusion cutting is heated to a certain temperature the material melt, and then through the nozzle with beam coaxial gas injection of oxidation, using the pressure of gas liquid metal, form the incision. Laser fusion cutting energy needed for only 1/10 of the vaporization cutting, don't need to make the metal completely vaporized. Generally suitable for laser fusion cutting material such as stainless steel, titanium, aluminum and its alloys, are not easy oxidation of metal material or activity. 3, oxygen cutting laser oxygen cutting with laser as a heating heat source, with supplemental oxygen reactive gas, such as cutting gas, after the gas jet, the gas and metal oxidation reaction, release a large number of thermal oxide. At the same time, the molten oxide and melt blowing out from the reaction zone, the formation of incision in the metal. Generally suitable for laser oxygen cutting material is carbon steel, titanium steel and heat treatment of steel and other easy oxidation of metal materials. 4, laser scribing and control laser scribing fracture and fracture control is the use of the high energy density of laser beam scanning the surface of the material, is the outside of the material is heated from a small slot, and then a certain pressure, so the laser will be along the small slot is cut. The cutting generally use the material is brittle materials.