The laser beam is focused to a very small light spot with a minimum diameter of less than 0.1 mm), resulting in a very high power density at the focal point of more than 106 W/cm2). At this time, the input of the beam (converted by light energy) far exceeds the amount of heat that is reflected, transmitted, or diffused by the material. The material is quickly heated to the vaporization humidity and evaporated to form a hole. With the relative linear movement of the light beam and the material, the holes are continuously formed into slits having a narrow width (for example, about 0.1 mm). The thermal effect of trimming is very small and there is basically no deformation of the workpiece.
An auxiliary gas suitable for the material to be cut is also added during the cutting process. When the steel is cut, oxygen is used as an auxiliary gas to generate an exothermic chemical reaction oxidizing material with the molten metal, and at the same time, the slag in the kerf is blown away. Cutting polypropylene uses compressed air as a type of plastic, and inactive gases as combustible materials such as cotton and paper. The auxiliary gas entering the nozzle also cools the focusing lens, preventing soot from entering the lens holder and contaminating the lens and causing the lens to overheat.
Most organic and inorganic materials can be cut by laser. In the metal processing industry in which industrial manufacturing occupies a heavy weight, many metal materials, regardless of their hardness, can be shaped without distortion. (The current use of the most advanced laser cutting system can cut the thickness of industrial steel can be approached. 20mm). Of course, for highly reflective materials such as gold, silver, copper, and aluminum alloys, they are also good heat conductors, so laser cutting is difficult or even impossible to cut (some difficult-to-cut materials can be cut using a pulsed laser beam, Due to the extremely high peak power of the pulse wave, the absorption coefficient of the material to the beam can be sharply increased instantaneously.
Laser cutting without burrs, wrinkles, high precision, better than plasma cutting. For many electromechanical manufacturing industries, the modern laser cutting system of the microcomputer program can easily cut workpieces of different shapes and sizes (workpiece drawings can also be modified). It is often preferred over punching and molding processes; despite its processing speed Slower than mold punch, but it does not consume the mold, no need to repair the mold, but also save the time to replace the mold, thus saving processing costs and reduce product costs, so in general it is more economical.
On the other hand, from the viewpoint of how to adapt the mold to the dimension of the workpiece design and shape change, laser cutting can also exert its advantages of precision and reproducibility. As a priority manufacturing method of the laminated mold, since an advanced mold maker is not required, the laser cutting operation cost is also inexpensive, and thus the mold manufacturing cost can be significantly reduced. The added benefit of the laser cutting tool is that the cutting edge of the tool creates a shallow hardened layer (heat affected zone) that increases wear resistance during mold operation. The non-contact nature of laser cutting brings stress-free advantages to circular saw blade cutting, thereby increasing the service life.
An auxiliary gas suitable for the material to be cut is also added during the cutting process. When the steel is cut, oxygen is used as an auxiliary gas to generate an exothermic chemical reaction oxidizing material with the molten metal, and at the same time, the slag in the kerf is blown away. Cutting polypropylene uses compressed air as a type of plastic, and inactive gases as combustible materials such as cotton and paper. The auxiliary gas entering the nozzle also cools the focusing lens, preventing soot from entering the lens holder and contaminating the lens and causing the lens to overheat.
Most organic and inorganic materials can be cut by laser. In the metal processing industry in which industrial manufacturing occupies a heavy weight, many metal materials, regardless of their hardness, can be shaped without distortion. (The current use of the most advanced laser cutting system can cut the thickness of industrial steel can be approached. 20mm). Of course, for highly reflective materials such as gold, silver, copper, and aluminum alloys, they are also good heat conductors, so laser cutting is difficult or even impossible to cut (some difficult-to-cut materials can be cut using a pulsed laser beam, Due to the extremely high peak power of the pulse wave, the absorption coefficient of the material to the beam can be sharply increased instantaneously.
Laser cutting without burrs, wrinkles, high precision, better than plasma cutting. For many electromechanical manufacturing industries, the modern laser cutting system of the microcomputer program can easily cut workpieces of different shapes and sizes (workpiece drawings can also be modified). It is often preferred over punching and molding processes; despite its processing speed Slower than mold punch, but it does not consume the mold, no need to repair the mold, but also save the time to replace the mold, thus saving processing costs and reduce product costs, so in general it is more economical.
On the other hand, from the viewpoint of how to adapt the mold to the dimension of the workpiece design and shape change, laser cutting can also exert its advantages of precision and reproducibility. As a priority manufacturing method of the laminated mold, since an advanced mold maker is not required, the laser cutting operation cost is also inexpensive, and thus the mold manufacturing cost can be significantly reduced. The added benefit of the laser cutting tool is that the cutting edge of the tool creates a shallow hardened layer (heat affected zone) that increases wear resistance during mold operation. The non-contact nature of laser cutting brings stress-free advantages to circular saw blade cutting, thereby increasing the service life.
Puersen Hardware Wire Mesh Products Co., Ltd. , http://www.sjz-wiremesh.com