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Laser cutting machines have become more and more widely used in various fields, and more and more suitable materials have been used. However, different materials have different characteristics. When laser cutting is used, the matters needing attention are also different. The following is a brief analysis of the main materials used in laser cutting:
Carbon Steel Plates This material gives better results when it is cut with oxygen. When oxygen is used as a process gas, the cutting edge is slightly oxidized. For plates up to 4 mm in thickness, high pressure cutting can be performed with nitrogen as the process gas. In this case, the cutting edge will not be oxidized.
Stainless steel cutting of stainless steel requires: The use of nitrogen gives an oxide-free, burr-free edge that does not require post-processing. The coating film on the surface of the plate will get better perforation without reducing the processing quality.
Aluminum (China Cutting Machine Trading Network)
In spite of high reflectivity and thermal conductivity, aluminum materials with a thickness of less than 8 mm can be cut, depending on the type of alloy and laser capability. When cut with oxygen, the cutting surface is rough and hard. With nitrogen, the cutting surface is smooth. Pure aluminum is very difficult to cut because of its high purity. China-Russia lasers use imported lasers, and add absorption devices on the optical path reflection path, which protects the laser.
Both copper and brass plates have high reflectivity and very good thermal conductivity. Brass with a thickness of 1 mm or less can be cut with nitrogen; copper with a thickness of 2 mm or less can be cut, and the processing gas must be oxygen. China-Russia lasers use imported lasers to add an absorption device to the optical path reflection path, which protects the laser.
Organics have a risk of fire in the cutting of all organic materials (using nitrogen as a process gas and compressed air as a process gas). Wood, leather, cardboard, and paper can be cut with a laser and the cutting edges burn (brown).
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