Laser cutting techniques
Laser cutting techniques for different metal materials.
Firstly, stainless steel cutting.
The stainless steel metal plate generally cut with nitrogen to prevent oxidation, and there is no burr edge. After cutting,we can weld the stainless steel without post-treatment. The effect of cutting with oxygen may be worse than that of nitrogen, causing blackening and unevenness of the end faces.
Secondly, carbon steel cutting.
When laser cutting carbon steel, oxygen is generally to obtain better results. While the oxygen reaction heat is to increase the cutting efficiency, the resulting oxide film also increases the beam spectral absorption factor of the reflective material. One problem with oxygen processing is that the edges may be slightly oxidized. If more demanding users can use nitrogen for high pressure cutting, it is also possible to achieve better cutting results by applying oil to the surface of the workpiece.
Thirdly, aluminum cutting.
Aluminum is a highly reflective material in metallic materials that has high reflectivity and thermal conductivity. In recent years, many manufacturers’ laser cutting machines have been equipped with “anti-reflection devices” to adapt to aluminum cutting, and laser cutting opportunities without “anti-reflection devices” have damaged their optical components. At the same time, depending on the power of the equipment, the thickness of the cut aluminum is also different. Generally, the thickness of stainless steel and carbon steel cut by the same equipment is thicker than that of high-reflection materials such as aluminum. Aluminum is also more suitable for cutting with nitrogen, and the cutting effect is good.
Fourthly, copper and brass cutting.
Like aluminum, copper and brass are highly reflective materials that require an “anti-reflection” laser for cutting.
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