Principle of laser cutting machine air cutting:

   when the laser cutting machine is processing, it must use protective gas. Air is of course a simple and economic protective gas. The function of air compressor is to supply cutting gas composed of compressed air, high-purity oxygen and high-purity nitrogen to the cutting head, part of which is used as a source of power to the cylinder of the clamping table, and the later part is used to purge the optical system Dust removal: after the compressed air discharged from the air enters the air control cabinet through the air storage tank and dryer, it becomes clean and dry gas through a set of precise processing system, which is divided into three ways, respectively as cutting gas, cylinder power source and positive pressure dust removal gas to maintain the normal operation of the laser cutting machine. Therefore, the air compressor is essential for each laser cutting equipment Laser cutting machine is also very important.



Effect analysis of laser cutting machine with different gases

   1. Air; can be supplied directly by air compressor, so it is very cheap compared with other gases. Although the air contains about 20% oxygen, the cutting efficiency is far less than that of oxygen, and the cutting capacity is similar to that of nitrogen. Micro oxide film will appear on the cutting surface, but it can be used as a measure to prevent the film from falling off. The end face of the incision is yellow.

The main applicable materials are aluminum, aluminum alloy, stainless copper, brass, electroplated steel plate, nonmetal, etc.

   2. Nitrogen; when some metals are cut, oxygen will form an oxide film on the cutting surface, and nitrogen can be used for non oxide cutting to prevent the oxide film. The non oxidation cutting mask has the characteristics of direct welding, coating and strong corrosion resistance. The end face of the incision is white.

   the main applicable plates are stainless steel, electroplated steel plate, brass, aluminum, aluminum alloy, etc.

   3, oxygen; mainly used for laser cutting carbon steel. When the cutting efficiency is improved by using the large size of the reaction heat of oxygen, the oxide film will increase the spectral absorption factor of the reflecting material. The end face of the incision is black or dark yellow.

   mainly applicable to rolled steel, rolled steel for solution joint structure, carbon steel for mechanical structure, high tension plate, tool plate, stainless steel, electroplated steel plate