high speed laser cutting machineCutting Technical Description

In large-area high-speed laser cutting machine, the processing height of different places is slightly different, causing the material surface to deviate from the focal length, so the spot size gathered in different places is not the same, the power density is not the same, the laser cutting quality of different cutting positions is very inconsistent, can not meet the quality requirements of laser cutting.

Auxiliary gas

During the cutting process, an auxiliary gas suitable for the material to be cut must be added. The coaxial gas not only blows away the slag in the slit, but also cools the surface of the processed object, reduces the heat-affected zone, cools the focusing lens, and prevents dust from entering the lens holder to contaminate the lens, causing the lens to overheat. The choice of gas pressure and type has a great influence on cutting. Common gases are: air, oxygen and nitrogen.

High speed laser cutting machine with high cutting precision

　　high speed laser cutting machineIt has the advantages of high cutting accuracy, fast speed, unlimited cutting patterns, and low processing costs. It is gradually replacing traditional metal cutting processing equipment. At present, the application range of high-speed laser cutting machines is getting wider and wider, and the cutting accuracy of high-speed laser cutting machines is related to the processing technology, so it is also one of the most concerned issues for buyers. For the understanding of laser cutting accuracy, many people have some misunderstandings. In fact, the cutting accuracy of high-speed laser cutting machine does not depend entirely on the equipment itself, but is affected by many factors. Below we simply understand what factors are most likely to affect the cutting accuracy of high-speed laser cutting machine.

A. The size of the spot after the laser beam is focused. The smaller the laser spot, the higher the cutting accuracy.

B. The position accuracy of the table determines the repeatability of the cutting. The higher the accuracy of the worktable, the higher the cutting accuracy.

C. The greater the thickness of the workpiece, the lower the accuracy and the larger the kerf. Because the laser beam is tapered, the seam is also tapered. It is also stainless steel. The seam of 0.3mm stainless steel is much smaller than that of 2mm stainless steel.

D. The workpiece material has a certain influence on the accuracy of laser cutting. Under the same circumstances, stainless steel has higher cutting accuracy and smoother section than aluminum.

　high speed laser cutting machinecutting speed and cutting effect

Laser cutting without burr, wrinkle, high precision. For many electromechanical manufacturing industries, because the modern CNC laser cutting system adopts computer program control, it can easily cut workpieces of different shapes and sizes. It is often more popular than punching and forming processes; although the processing speed of high-speed laser cutting machines It is also slower than the mold, but it has no mold consumption, does not need to repair the mold, and saves the time for mold replacement, thus saving processing costs, the production cost is reduced, so it is more cost-effective as a whole. In the industrial manufacturing system occupies a very heavy metal processing industry, many metal materials, no matter what kind of hardness it is, can be cut without deformation. However, for materials with high reflectivity, such as gold, silver, copper and aluminum alloys, because they are also good heat transfer conductors, laser cutting is very difficult or even impossible to cut.

The laser cutting process is suitable for adding and cutting auxiliary vapors of the material. Steel cutting uses oxygen as an auxiliary vapor to produce an exothermic chemical reaction with the molten metal, while helping to blow away the slag in the seam. Cutting polypropylene plastic uses compressed air, cotton, paper and other flammable materials to cut inert steam. The auxiliary steam entering the nozzle also cools the focusing lens, preventing dust from entering the lens holder to contaminate the lens and cause the lens to overheat. High-speed laser cutting machine is also very important in the choice of cutting speed. The best cutting speed range can be selected or tested according to the equipment description. Due to the thickness of the material, different materials, melting point, thermal conductivity, melting surface tension and other factors, The cutting speed will also change accordingly.