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Analysis About CNC Laser Cutting Materials

With the using areas of CNC laser cutting is more and more widely,the applicable materials are also more and more. However, different materials have different properties, so it needs more attention in using the laser cutting, following with a brief analysis of the main materials used for CNC laser cutting.

Structural steel

Cutting the material with oxygen will get better results. When using oxygen as a process gas, the cutting edge will be slightly oxidized. For the plate thickness up to 4mm, with nitrogen as the process gas and high pressure cutting. In this case, the cutting edge will not be oxidized. When the plate thickness up to 10mm, using oil coated the surface of the workpiece during cutting process can get better results.

Stainless steel

Cutting stainless steel needs:In the case of oxide on the edge of plate,using oxygen doesn't matter; the nitrogen, are non-oxidizing Burr-free edges, no further treatment is required. Without lowering the quality case, perforated surface coating can achieve a better result.


Despite the aluminum with a higher reflectivity, the thickness of aluminium less than 6mm can be cut, it's depending on the alloy type and lasers. Use oxyacetylene cutting is more difficult and the cutting surface is rough.While using nitrogen, the cutting surface is relatively smooth.


Titanium sheet with argon gas and nitrogen gas as a processing gas to cutting. Other parameters can refer to a nickel-chromium steel.

Copper and brass

Both materials have a high reflectivity and a very good thermal conductivity. Brass of a thickness of 1mm or less can be cut with nitrogen; copper in a thickness of 2mm or less can be cut, the processing gas with oxygen.

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