An auxiliary vapor body suitable for the material to be cut is also added during the laser processing and cutting process. The steel is cut with oxygen as the auxiliary vapor and the molten metal to generate an exothermic chemical reaction to oxidize the material, while helping to blow away the slag in the slit. A type of plastic that cuts polypropylene uses compressed air, and flammable materials such as cotton and paper are cut using an inert gas. The auxiliary vapor entering the nozzle also cools the focusing lens, preventing smoke from entering the lens holder and contaminating the lens and causing the lens to overheat.
Laser cutting without burrs, wrinkles, high precision, better than plasma cutting. For many electromechanical manufacturing industries, modern laser cutting systems controlled by microcomputer programs can easily cut workpieces of different shapes and sizes, which are often preferred over die cutting and molding processes; although they are slower than die punching, However, it has no mold consumption, no need to repair the mold, and saves the time for changing the mold, thereby saving processing costs and reducing production costs, so it is more cost-effective to consider.
Most organic and inorganic materials can be laser cut. In the metal processing industry where industrial manufacturing systems are heavily weighted, many metal materials, regardless of their 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.
Laser cutting has many features. For example: 1. narrow straight edge slit; 2. minimum heat affected zone adjacent to the trim; 3. minimal local deformation. Secondly, the laser beam does not exert any force on the workpiece. It is a non-contact cutting tool, which means 1. The workpiece has no mechanical deformation; 2. No tool wear, and no problem with the conversion of the tool; 3. Cutting material need not be considered. Its hardness, that is, the laser cutting ability, is not affected by the hardness of the material being cut, and any hardness material can be cut.
As with other thermal cutting methods, as a thermal cutting process, other methods do not act as a laser beam in a very small area, resulting in a wide slit, a large heat affected zone, and significant workpiece deformation. Lasers can cut non-metals, while other thermal cutting methods do not.
However, laser cutting has greater flexibility than other conventional processing methods.
Laser cutting, the importance of laser processing in the laser industry