Matters Needing Attention in Processing Different Materials Of Metal Laser Cutting Machine

With the rapid development of laser cutting technology, laser cutting machines play a unique role in all walks of life due to their unique advantages. Metal laser cutting machines have different characteristics in the cutting of various materials in the machinery industry, and there are different precautions for different materials when using laser cutting machines. At present, the metal materials that need to be processed by laser cutting machines are mainly stainless steel, aluminum plate, carbon steel plate, etc., let’s analyze it next.

▼Stainless steel

Metal laser cutting machine is an effective processing tool for manufacturers of stainless steel sheet manufacturing. Cutting stainless steel needs: Use high-pressure nitrogen to get the edges without oxidation and burrs, and no further treatment is required. Coating the oil film on the surface of the plate will get a better perforation effect without reducing the processing quality.

▼Aluminum plate

Aluminum cutting is a melting laser cutting machine, and the auxiliary gas used is mainly used to blow away the molten product from the cutting area, and usually a better cut surface quality can be obtained. For some aluminum alloys, attention should be paid to prevent the occurrence of intercrystalline micro-cracks on the surface of the slit. Pure aluminum is very difficult to cut because of its high purity, so aluminum can only be cut when a "reflection absorption" device is installed on the fiber laser cutting machine system. Otherwise, the reflection will destroy the optical components.

▼Carbon steel plate

Better results will be obtained when this material is cut with oxygen. When oxygen is used as the processing gas, the cutting edge will be slightly oxidized. The metal laser cutting machine can cut carbon steel plates with a thickness of up to 20 mm. The cutting seam of carbon steel can be controlled within a satisfactory width range by using the oxidation melting cutting mechanism, and the cutting seam for thin plates can be as narrow as about 0.1 mm.

▼Copper and brass

Both materials have high reflectivity and very good thermal conductivity. Pure copper (red copper) basically cannot be cut with CO2 laser beam due to its high reflectivity. Brass (copper alloy) uses a higher laser power, and the auxiliary gas uses air or oxygen, which can cut thinner plates. Brass with a thickness of 1mm or less can be cut with nitrogen; copper with a thickness of 2mm or less can be cut, and the processing gas must be oxygen.

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