Three auxiliary gases for laser cutting machines

There are generally only three auxiliary gases for laser pipe cutting machines:

There are generally only three auxiliary gases for laser pipe cutting machines: oxygen, air and nitrogen. The gases used when cutting different metal pipes are also different. According to the thickness of the wall thickness of the metal pipe, the amount and pressure of auxiliary gas are naturally different. The pressure of this auxiliary gas has a great impact on the cutting effect. Commonly used auxiliary gases are mainly compressed air, nitrogen and oxygen:

1. Compressed air

Compressed air is very suitable for cutting aluminum, galvanized materials and non-metallic materials. It can reduce the thickness of the oxide film and save costs. Generally, we use it when the wall thickness of the cut pipe is relatively thin and the cutting surface requirements are low. Compressed air is more used in the production of cabinets, kitchenware, sheet metal, etc.

2. Nitrogen gas

As we all know, nitrogen is an inert gas, so nitrogen is generally used to prevent oxidation of the cutting surface, prevent combustion, etc. It can be used to cut materials with high cross-section requirements of high quality. Generally used for cutting special parts such as stainless steel, aerospace, and decoration industries;

3. Oxygen

Oxygen plays a role in combustion, which can increase the cutting speed and improve the cutting efficiency. Generally used for cutting carbon steel. After reaching a maximum value, continuing to increase the gas pressure will cause a decrease in cutting speed. Generally used in steel, copper alloys, etc.

Everyone knows that auxiliary gases must be added during the processing of laser cutting machines, and the choice of auxiliary gases is also a great knowledge! In addition to the above functions, these auxiliary gases have many common functions. These gases can blow away the slag generated during cutting and can protect the lens, prevent the slag from sticking to the lens, and extend the service life of the lens. Air and nitrogen also have a cooling effect, which can cool the cutting head.