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How to choose auxiliary gas for fiber laser cutting machine

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  Laser cutting machines break the traditional processing methods and are widely used in all walks of life with a new cutting method. Users who know fiber laser cutting machines should know that auxiliary gas is often used in the cutting process, which is exactly .In this way, many people are more concerned about the issue of “gas”. Today, Baiwei Laser will share with you the gas used in fiber laser cutting.
The auxiliary gases that can be used by laser cutting machines are mainly air, nitrogen, oxygen and argon. Below we will introduce their uses and characteristics for different auxiliary gases.

1. Air
Air can be supplied directly by an air compressor, so it is cheaper than 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. A small amount of oxide film will appear on the cut surface, but it can be used as a measure to prevent the peeling of the coating layer. The end of the incision turns yellow. The main applicable materials are aluminum, aluminum alloy, stainless copper, brass, etc. When the quality requirements of the cutting product are high, aluminum, aluminum alloy, stainless steel, etc. are not suitable for air, because the air will oxidize the base metal.
2. Nitrogen
When some metals are cut with oxygen, an oxide film will be formed on the cutting surface, and nitrogen can be used for non-oxidative cutting to prevent the appearance of the oxide film. It has the characteristics of direct welding and painting, and strong corrosion resistance. The end of the incision is whitish. The main applicable plates are stainless steel, electroplated steel plate, brass, aluminum, aluminum alloy, etc.

3. Oxygen
Mainly used for laser cutting carbon steel. While using the oxygen thermal reaction to greatly improve the cutting efficiency, the generated oxide film will increase the beam spectral absorption factor of the reflective material. The end face of the incision is black or dark yellow. Mainly suitable for rolled steel, tool plate, stainless steel, electroplated steel plate, copper, copper alloy, etc.
Baiwei has successfully developed laser cutting equipment with international advanced technology, metal laser cutting machine. Laser cutting machine is widely used in electronic circuits, auto parts, hardware tools, medical equipment, digital products, instrumentation, optical communication devices, metal Silver jewelry, craft gifts and many other industries.