What gas is used for laser cutting?

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

The main applicable materials are aluminum, aluminum alloy, stainless copper, brass, galvanized steel plate, nonmetal and so on.

2. Nitrogen

When cutting some metals, oxygen will form an oxide film on the cutting surface, and nitrogen can be used for non-oxidation cutting to prevent the oxide film from appearing. Non-oxidation cutting surface has the characteristics of direct welding and smearing, strong corrosion resistance and so on. The end face of the incision is white.

The main applicable plates are stainless steel, electroplated steel plate, brass, aluminum, aluminum alloy and so on.

In definition, laser refers to "light amplified by atomic stimulated radiation";

Here "atom" refers to the smallest unit that constitutes "working substance", just as cells are the smallest unit that constitutes human tissues.

According to the different states of working substances, lasers can be basically divided into solid, gas, liquid, semiconductor and free electron lasers.