The Role and Application Of Auxiliary Gas

Role of auxiliary gas

1. In order to blow away the residual waste and achieve the best cutting effect.

2. Use gas to blow away metal slag while protecting the lens to prevent slag.

Attached to the lens, affecting the cutting quality.

3. It can effectively achieve the effect of smooth cutting surface, no burrs and no slag.

4. Can react with the material to increase the cutting speed.

Application of auxiliary gas

a. Air

Air is a mixture of nitrogen, oxygen and other gases. The collection method is relatively simple, using an air compressor to compress to the air storage tank, it can be extracted after filtering, cooling and drying, the required cost less. It is more advantageous to cut metal sheet, mainly suitable for cutting carbon Steel, aluminum, aluminum alloy, brass and other metals.

b. Oxygen

Oxygen cutting can play a combustion-supporting effect and improve cutting efficiency. The resulting oxide film increases the beam spectral absorption index of the reflective material. So that the laser energy can be used more effectively and speed up the laser cutting machine. The cutting speed is mainly suitable for thick plate cutting, such as carbon steel, non-Stainless steel, alloy metal, etc.

c. Nitrogen

Nitrogen is chemically inactive, and it is not easy to oxidize with the workpiece. Reaction, the use of nitrogen cutting requires higher purity. opposite cutting surface. For higher quality requirements, nitrogen gas can be used for auxiliary cuttinG, and it is main suitable for cutting stainless steel, brass, aluminum and other metal materials.

The use of various gases is determined according to the properties of the material to be cut. In order to achieve a better cutting effect, the requirements for auxiliary gases are relatively high. Therefore, selecting the appropriate gas can effectively speed up the production efficiency. Therefore, in the cutting process, the appropriate gas must be selected according to the characteristics of the cutting product.