With the increasing application of laser cutting, there are more and more suitable materials. However, different materials have different characteristics. Therefore, when laser cutting is used, the matters needing attention are also different. The following is a brief analysis of the main materials used for laser cutting:
A: Metal laser cutting machine - metal cutting 1) Structural steel The material will get better results when 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. For plates with a thickness of more than 10 mm, special electrodes are used for the laser and the surface of the workpiece can be oiled during processing to obtain better results.
2) Stainless steel cut stainless steel needs: Use oxygen, it does not matter if the edge is oxidized; Use nitrogen to get oxidized without burr-free edges, no need to deal with it. The coating film on the surface of the plate will get better perforation without reducing the processing quality.
3) Aluminum materials Despite their high reflectivity and thermal conductivity, aluminum materials with a thickness of up to 6 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. The aluminum can only be cut when a "reflection absorbing" device is installed on the system. Otherwise the reflection will destroy the optical components.
4) Titanium metal titanium plates are cut with argon and nitrogen as process gases. Other parameters can refer to nickel-chromium steel.
5) Both copper and brass materials 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. Copper and brass can only be cut when a "reflection absorbing" device is installed on the system. Otherwise the reflection will destroy the optical components.
Second: When cutting synthetic materials synthetic materials, we must keep in mind the danger of cutting and possible discharge of dangerous substances. Processable synthetic materials are: thermoplastics, thermosetting materials and elastomers.
Three: Organic matter is in danger of catching fire in the cutting of all organic materials (using nitrogen as the process gas, but compressed air can also be used as the process gas). Wood, leather, cardboard, and paper can be cut with a laser and the cutting edges burnt (brown)
A: Metal laser cutting machine - metal cutting 1) Structural steel The material will get better results when 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. For plates with a thickness of more than 10 mm, special electrodes are used for the laser and the surface of the workpiece can be oiled during processing to obtain better results.
2) Stainless steel cut stainless steel needs: Use oxygen, it does not matter if the edge is oxidized; Use nitrogen to get oxidized without burr-free edges, no need to deal with it. The coating film on the surface of the plate will get better perforation without reducing the processing quality.
3) Aluminum materials Despite their high reflectivity and thermal conductivity, aluminum materials with a thickness of up to 6 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. The aluminum can only be cut when a "reflection absorbing" device is installed on the system. Otherwise the reflection will destroy the optical components.
4) Titanium metal titanium plates are cut with argon and nitrogen as process gases. Other parameters can refer to nickel-chromium steel.
5) Both copper and brass materials 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. Copper and brass can only be cut when a "reflection absorbing" device is installed on the system. Otherwise the reflection will destroy the optical components.
Second: When cutting synthetic materials synthetic materials, we must keep in mind the danger of cutting and possible discharge of dangerous substances. Processable synthetic materials are: thermoplastics, thermosetting materials and elastomers.
Three: Organic matter is in danger of catching fire in the cutting of all organic materials (using nitrogen as the process gas, but compressed air can also be used as the process gas). Wood, leather, cardboard, and paper can be cut with a laser and the cutting edges burnt (brown)
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