Do you encounter the following puzzles in the laser cutting process

What kind of plate is matched with what kind of gas?

How to choose the auxiliary gas?

What aspects will different gases affect the cutting quality?!!!

Which auxiliary gas is selected for different plates, etc

Let's take you to know

The auxiliary gas of laser cutting machine usually includes air, nitrogen and oxygen. Different auxiliary gas shall be used for cutting different materials.

1. Compressed air

Air is suitable for cutting aluminum, non-metallic and galvanized steel plates, which can reduce the oxide film to a certain extent and save costs. Generally, it is used when the sheet is relatively thin and the requirements for cutting surface are not high. In some industries such as sheet metal chassis, cabinet and kitchenware, compressed air is widely used.

2. Nitrogen

Nitrogen is an inert gas, which can prevent the oxidation of the end face of the product during cutting and prevent burning (it is easy to happen when the sheet is thick). Nitrogen can be selected for products with high requirements for cutting end faces and exposed products that do not need to be treated, such as some decoration industries, aerospace special parts, etc.

3. Oxygen

Oxygen mainly plays a combustion supporting role, which can increase the cutting speed and thickness. Oxygen is suitable for thick plate cutting, high-speed cutting and extremely thin plate cutting. Oxygen is often used in the cutting of some large carbon steel plates and thicker carbon steel plate structures.

When the laser cutting machine is running, the auxiliary gas can not only blow away the slag in time, but also cool the workpiece and clean the lens. We should select appropriate auxiliary gas according to different cutting materials and thicknesses during operation