What gas is needed for laser cutting?

Different auxiliary gases are suitable for cutting metal plates with different materials and thicknesses.

1. oxygen oxygen has a strong combustion-supporting effect and can speed up laser cutting, so it is suitable for carbon steel, high tension plate, thick stainless steel, electroplated steel plate, copper and copper alloy.

2. When nitrogen is cut by oxygen, an oxide film will be formed, which will improve the absorption factor of the light speed spectrum of the reflective material, and the cut end face is easy to turn black or appear dark yellow. The use of oxygen can prevent the formation of oxide film, and the non-oxidation cutting surface has the characteristics of direct welding, strong corrosion resistance and white cut end face.

3. The air contains about 20% oxygen, and the compressed air of the air compressor can be used for free. However, the efficiency and quality of air-assisted cutting are far less than that of oxygen. At the same time, a trace oxide film will appear on the cutting surface. It can be used for cutting aluminum, aluminum alloy, brass, electroplated steel plate and other metal materials. However, it should be noted that no matter what type of auxiliary gas is selected, pressure adjustment is very important. When you cut under proper air pressure, the cutting efficiency and cutting quality will be greatly improved. On the other hand, if the air pressure is too high, the cutting speed will slow down, and if the air pressure is too low, the workpiece can not be cleaned well, resulting in the damage of slag to the lens.