1. The structural steel
Better results are obtained when the material is cut with oxygen.When oxygen is used as a processing gas, the cutting edge is slightly oxidized.Nitrogen can be used as a processing gas for high-pressure cutting of plates with thickness up to 4mm.In this case, the cut edge will not be oxidized.The thickness of the plate is more than 10mm, the use of special plate for the laser and in the processing of the workpiece surface oil can get a better effect.
2. The stainless steel
Cutting stainless steel requires: the use of oxygen, in the case of marginal oxidation does not matter;Nitrogen is used to get a no-oxidation, no-burr edge, and no further treatment is required.Coating the oil film on the surface of the plate will get better perforation effect without reducing the processing quality.
Despite its high reflectivity and thermal conductivity, aluminum with a thickness of less than 6mm can be cut, depending on the alloy type and laser capability.When cut with oxygen, the cutting surface is rough and hard.When nitrogen is used, the cutting surface is smooth.Pure aluminum, because its high purity is very difficult to cut, should only be cut when a "reflection and absorption" device is installed on the system.Otherwise the reflection will destroy the optical component.
Titanium plates are cut using argon and nitrogen as the processing gas.
5. Copper and brass
Both materials have high reflectivity and excellent thermal conductivity.Brass up to 1mm thick can be cut with nitrogen;Copper with a thickness of less than 2mm can be cut, and oxygen must be used to process gas.Copper and brass should be cut only when a "reflection and absorption" device is installed on the system.Otherwise the reflection will destroy the optical component.
6. Synthetic materials
Keep in mind the risks of cutting and possible discharge of hazardous materials when cutting synthetic materials.The available synthetic materials are thermoplastics, thermosetting materials and synthetic rubber.
7. Organic matter
There is a risk of ignition in all organic cutting (nitrogen as the processing gas, or compressed air as the processing gas).Wood, leather, cardboard and paper can be cut with a laser and the cutting edges will burn (brown).
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