Laser cutting machine technology occupies an important position in my country's industrial production

China is a big manufacturing country, and China's industrial technology has developed rapidly in recent years. I think everyone is no longer familiar with industrial lasers. Especially today, many necessities in life will use laser processing technology. For example, the vehicles we drive every day, whether they are railways or automobiles, will use laser cutting and welding processes.

The laser cutting machine focuses the laser beam on a small spot, so that the focal point reaches a high power density, the material is quickly heated to the degree of vaporization, and vaporizes to form a hole. The laser cutter moves linearly with the beam and the material, so the hole continuously forms a very narrow slit. The cutting edge is hardly affected by heat, and there is basically no workpiece deformation. In addition, the laser cutting machine also adds suitable auxiliary gas to the material to be cut during the operation. When cutting steel, oxygen is used as an auxiliary gas to produce an exothermic chemical reaction with molten metal to oxidize the material and at the same time help remove slag in the gap. Compressed air is used to cut polypropylene and other plastics, and inert gas is used to cut flammable materials such as cotton and paper.

Most organic and inorganic materials can be laser cut. In the metal processing industry, where industrial manufacturing systems account for a large share, many metal materials can be cut without deformation, regardless of their hardness.

Laser cutting has no burrs, wrinkles and high precision, which is better than plasma cutting. For many manufacturing industries, since modern computer program-controlled laser cutting systems can cut workpieces of different shapes and sizes, they are usually preferred for use in the stamping and molding process; although the processing speed is slower than the punching speed, this is not the case . It consumes molds, does not need to repair molds, saves time for mold replacement, and can process thicker metals, thereby saving processing costs and reducing production costs, so overall consideration is more profitable.

From the perspective of how to adapt the mold to the design size and shape of the workpiece, laser cutting can also take advantage of its high accuracy and good repeatability. As a preferred manufacturing method of the laminated mold, since it does not require advanced mold manufacturing workers, the operation cost of laser cutting is low, and therefore, the manufacturing cost of the mold can be significantly reduced. Another advantage of laser cutting molds is that the cutting edges 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 function of laser cutting provides stress-free benefits for the cutting and forming of circular saw blades, thereby prolonging the service life of the saw blade.

The laser beam of the laser cutting machine is focused to form a small point of action, with extremely strong energy, and has many characteristics when applied to cutting. First, the laser energy is converted into amazing heat energy and kept in a very small area, which can provide narrow straight-edge grooves, minimal heat-affected zones adjacent to the cut edges, and warpage. The smallest local. 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, tool wear, and tool changeover problems; the cutting material does not need to consider its hardness, that is, the laser cutting ability is not affected by the hardness of the cutting material; similarly, the laser beam It is highly controllable, has high adaptability and flexibility, so it is easy to combine it with automation equipment, and it is easy to automate the cutting process; because there is no need to cut the workpiece. The laser beam has unlimited contour cutting capabilities and can be used in conjunction with a computer to position the entire board, thereby saving material.

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