The main characteristics of laser cutting

The slit of laser cutting is narrow, and the deformation of the workpiece is small.

　　The laser beam is focused into a small spot, so that the focal point reaches a high power density. The material is quickly heated to the degree of vaporization, and evaporates to form a hole. The laser cutting machine moves linearly with the beam and the material, so that the holes continuously form slits with a very narrow width. The cutting edge is slightly affected by heat, and there is basically no deformation of the workpiece.

　　 In the cutting process, an auxiliary gas suitable for the material to be cut is also added. When steel is cut, 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 blow away the slag in the slit. Compressed air is used to cut polypropylene and other plastics, and inert gas is used to cut flammable materials such as cotton and paper. The auxiliary gas entering the nozzle can also cool the focusing lens, preventing smoke and dust from entering the lens holder to contaminate the lens and cause the lens to overheat.

　　 Most organic and inorganic materials can be laser cut. In the metal processing industry where the industrial manufacturing system accounts for a heavy 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 electromechanical manufacturing industries, because the modern laser cutting system controlled by the microcomputer program can easily cut workpieces of different shapes and sizes, it is often preferred to the punching and molding process; although its processing speed is slower than that of die punching, But it has no mold consumption, no need to repair molds, save time for mold replacement, and can process thicker metals, thereby saving processing costs and reducing production costs, so it is more cost-effective to consider overall.

　　 On the other hand, from the perspective of how to adapt the mold to the design size and shape of the workpiece, laser cutting can also play its advantages of accuracy and good reproducibility. As a preferred manufacturing method for laminated molds, since it does not require advanced mold making workers, laser cutting operation costs are not expensive, so mold manufacturing costs can be significantly reduced. The additional benefit of laser cutting molds 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 characteristic of laser cutting brings stress-free advantages to circular saw blade cutting and forming, thereby increasing the service life of the saw blade.

Laser cutting is a high-energy, density-controllable non-contact processing

　　The laser beam is focused and formed It has a very small point of action with strong energy, and it has many characteristics when applied to cutting. First of all, the laser light energy is converted into amazing heat energy and kept in a very small area, which can provide narrow straight-edge slits, the smallest heat-affected zone adjacent to the cut edges, 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 no tool conversion problem; 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 to be cut; again, the laser beam is highly controllable, and has high adaptability and flexibility, so it is convenient to combine 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 profiling cutting ability, and combined with a computer, the entire board can be laid out, saving materials.

Laser cutting has a wide range of adaptability and flexibility

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 incision, a large heat-affected zone and obvious workpiece deformation.