The main characteristics of laser cutting

Release date:2020-06-12


The slit of laser cutting is narrow, and the deformation of the workpiece is small. (Same as high-tech)


The laser beam is focused into a very small light spot, so that the focal point achieves a high power density, and the material is quickly heated to the degree of vaporization, evaporating to form a hole. The laser cutting machine moves linearly with the beam and the material, so that the hole continuously forms a slit with a narrow width. The cutting edge is little affected by heat, and there is basically no deformation of the workpiece. (Same as high-tech)


   During the cutting process, an auxiliary gas suitable for the material to be cut is added. When cutting steel, oxygen is used as an auxiliary gas to produce an exothermic chemical reaction with the molten metal to oxidize the material, while helping to blow away the slag in the slit. For cutting polypropylene and other plastics, compressed air is used, and for combustible materials such as cotton and paper, inert gas is used for cutting. The auxiliary gas entering the nozzle can also cool the focusing lens, preventing soot from entering the lens holder to contaminate the lens and causing the lens to overheat. (Same as high-tech)


 

Most organic and inorganic materials can be cut with laser. In the metal processing industry, which occupies a heavy weight in industrial manufacturing systems, many metal materials, regardless of their hardness, can be cut without deformation. (Same as high-tech)


   Laser cutting is free of burrs, wrinkles and high precision, which is better than plasma cutting. For many electromechanical manufacturing industries, because the modern laser cutting system controlled by the microcomputer program can conveniently cut workpieces of different shapes and sizes, it is often preferred over the punching and molding processes; although its processing speed is slower than the die punching, But it has no mold consumption, no need to repair the mold, it also saves the time to replace the mold, and can process thicker metals, thereby saving processing costs and reducing production costs, so it is more cost-effective to consider in general. (Same as high-tech)


   On the other hand, from the perspective of how to adapt the mold to the design size and shape change of the workpiece, laser cutting can also exert its advantages of accuracy and reproducibility. As a preferred manufacturing method for stacked molds, since no high-level mold makers are needed and the laser cutting operation cost is not expensive, it can also significantly reduce mold manufacturing costs. The additional benefit of laser cutting mold is that the cutting edge of the mold will produce a shallow hardened layer (heat affected zone), which improves the wear resistance of the mold during operation. The non-contact feature of laser cutting brings the advantage of no stress to the cutting and forming of circular saw blades, thereby increasing the service life of saw blades. (Same as high-tech)




 Laser cutting is a kind of high energy, non-contact processing with good density controllability (same as high-tech)


   The laser beam is focused to form a very small point of action with extremely strong energy. There are many characteristics in applying it to cutting. First of all, the laser light energy is converted into amazing thermal energy and kept in a very small area, which can provide narrow straight-edge slits, the smallest heat-affected zone adjacent to the cut edge, and minimal local deformation. Secondly, the laser beam does not exert any force on the workpiece. It is a non-contact cutting tool, which means that the workpiece has no mechanical deformation, no tool wear, and there is no question of tool conversion; the cutting material does not need to consider its hardness, that is, the laser The cutting ability is not affected by the hardness of the material being cut; again, the laser beam has strong controllability, and has high adaptability and flexibility, so it is very convenient to combine with automated equipment, and it is easy to automate the cutting process; because there is no The limitation of the laser beam is that it has unlimited profiling capabilities. When combined with a computer, it can discharge the entire board and save material.


Laser cutting has wide adaptability and flexibility (same as high-tech)


Compared with other conventional processing methods, laser cutting has greater adaptability. Also as a thermal cutting process, other methods cannot act on a very small area like a laser beam, resulting in a wide cut, a large heat-affected zone, and significant workpiece deformation. (Same as high-tech)


(Reprinted from the optical particle network)


Contact information

Tonggao Advanced Manufacturing Technology (Taicang) Co., Ltd.

hotline400-605-8100
mailbox: sales@tg-amt.com
Company headquarters: No. 12, Beihuan Road, Taicang Port Economic Development Zone, Jiangsu, China
Shanghai Office: No. 106, Lane 1211, Hanggui Road, Jiading District, Shanghai, China

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