When the carbon steel fiber laser cutting machine uses oxygen as the processing gas, the cutting edge will be slightly oxidized. For plates with a thickness not exceeding 4mm, nitrogen gas can be used as the processing gas for high-pressure cutting. In this case, the cutting edge will not be oxidized. For the above-mentioned thickness of plates, using the laser specific plate of the steel plate laser cutting machine and applying oil to the surface of the workpiece during the processing can achieve better results.

2. Copper and brass materials both have high reflectivity and excellent thermal conductivity. Brass with a thickness less than 1mm can be cut with nitrogen gas; Copper with a thickness of less than 2mm can be cut, and the processing gas must be oxygen. Copper and brass can only be cut when a "reflection absorber" device is installed on the system. Otherwise, reflection will damage the optical components.

3. Stainless steel is the most commonly used in various industries. When cutting stainless steel using a fiber laser cutting machine, nitrogen gas is used to obtain oxide free and burr free edges without affecting edge oxidation. Applying a layer of oil film on the surface of the sheet can achieve better perforation results without affecting the processing quality.

4. Aluminum, used in fiber laser cutting machines, has high reflectivity and thermal conductivity, and can cut aluminum with a thickness of less than 6mm, depending on the alloy type and laser capability. When cutting with oxygen, the cutting surface is rough and hard. Using nitrogen gas, the cutting surface is smooth. Pure aluminum has high purity and is difficult to cut. Aluminum can only be cut when a "reflection absorption" device is installed on the fiber laser cutting machine system. Otherwise, reflection will damage the optical components.

5. Titanium and titanium plates are cut using argon and nitrogen as processing gases. Other parameters can refer to nickel chromium steel.

The materials processed by the fiber laser cutting machine cover most of the metal, and the problems encountered during the cutting process are also different. Analysis should be based on the actual cutting situation.