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Laser Cutting
- Oct 25, 2016 -

laser cutting

Laser cutting is the use of focused high-power laser beam irradiation of the workpiece, so that the irradiated material quickly melt, vaporization, ablation or burning to reach the same time with the high-speed air flow with the beam blown out of molten material, in order to achieve the workpiece cut open. Laser cutting is one of the thermal cutting methods. Lasers can perform a variety of cutting tasks. From the generation of only a few microns on the semiconductor chip cut to high-quality cutting 30 mm steel. During laser drilling, the laser beam creates minute or larger holes in metal, plastic, paper, and stone without contact.

The focused laser beam is applied to the workpiece, heated, melted, or evaporated. Once the laser beam completely penetrates the workpiece, the cutting process is initiated: the laser beam moves along the contour of the workpiece and continuously melts the workpiece material. In most cases, the gas stream extrudes the melt downwardly from the incision. The width of the cut is not much wider than the focused laser beam.

Most laser cutting machines are controlled by a numerical control program or made into a cutting robot. Laser cutting As a precision machining method, almost all materials can be cut, including two-dimensional cutting or three-dimensional cutting of thin metal plates. Most organic and inorganic materials can be laser cut. In the metal processing industry, where heavy industrial manufacturing systems are important, many metal materials, regardless of the hardness, can be cut without distortion. Of course, for high reflectivity materials such as gold, silver, copper and aluminum alloys, they are also good heat transfer conductors, so laser cutting is difficult, or even impossible to cut. Laser cutting without burr, wrinkle, high precision, better than plasma cutting. For many electromechanical manufacturing industries, the modern laser cutting system controlled by computer program can cut the workpiece with different shape and size conveniently, it is more preferred than punching and pressing process.

In the field of automobile manufacturing, car windows and other space curve cutting technology has been widely used. In aerospace, laser cutting technology is mainly used for cutting of special aviation materials, such as titanium alloy, aluminum alloy, nickel alloy, chromium alloy, stainless steel, beryllium oxide, composite materials, plastics, ceramics and quartz. The aerospace parts processed by laser cutting include engine flame tube, titanium alloy thin-walled casing, aircraft frame, titanium alloy skin, wing girder, tail panel, helicopter main rotor and space shuttle ceramic thermal insulation tile.