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Gas Analysis of Laser Cutting Machine in Different Materials

Source: Linchuan Precision  Article author:Linchuan Precision  Time:2019-10-08 10:30  Read: 858

Structural steel, which gives better results when cut with oxygen. When oxygen is used as the processing gas, the cutting edge is slightly oxidized. For plates up to 4 mm thick, 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 10 mm or more, special plates are used for the laser and oil is applied to the surface of the workpiece during processing to obtain better results.


Stainless steel, cutting stainless steel requires the use of oxygen. If the edge oxidation is not tight, use nitrogen to obtain an oxidized and burr-free edge, and no further treatment is required. Coating the oil film on the surface of the board will result in better perforation without sacrificing processing quality.


Aluminum, despite its high reflectivity and thermal conductivity, can be cut to aluminum with a thickness of less than 6 mm, 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 is very difficult to cut because of its high purity, only installed on the system; reflection absorption; the aluminum can be cut when the device is installed. Otherwise the reflection will destroy the optical components.


Titanium and titanium sheets were cut with argon and nitrogen as processing gases. Other parameters can be referred to nickel-chromium steel.


Copper and brass, both materials have high reflectivity and very good thermal conductivity. Brass with a laser cutting machine thickness of 1 mm or less can be cut with nitrogen; copper with a thickness of 2 mm or less can be cut, and oxygen must be used for the processing gas. Only when installed on the system; reflective absorption; the device can cut copper and brass. Otherwise the reflection will destroy the optical components.

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