In metal processing, laser cutting carbon steel occupies a very important position, especially through the use of high-power laser cutting, burr free cutting, bright surface cutting and other leading technologies, high-quality precision workpieces can be obtained to meet the secondary processing requirements of welding, surface treatment, etc. With the increase of plate thickness, to achieve bright cutting, not only the support of high-power laser, but also advanced cutting technology is required for parameter debugging, including the selection of nozzle and focus position will affect the cutting effect.

Features of 10000 watt laser cutting carbon steel:

Carbon steel plate is cut with oxygen and positive focus. The thicker the carbon steel is, the larger the positive focus is, the larger the light spot on the material surface is, and the larger the nozzle size is required（ φ 1.0-2.0mm）。

Influence of focus on carbon steel cutting

Within a certain focus range, the larger the positive focus, the smoother and brighter the carbon steel cutting surface.

Influence of nozzle on carbon steel cutting

With the same focus, the nozzle size is smaller. The smoother and brighter the carbon steel cutting surface, the smaller the taper.

How to select the appropriate nozzle and focus

If stable processing is to be achieved, it is necessary to ensure that the nozzle temperature does not burn and does not rise continuously. Therefore, it is necessary to select a suitable nozzle and focus position according to different carbon steel thicknesses. The following is about the nozzle heating when Chuangxin 12kw ten thousand watt laser is used to emit light at full power for 30 seconds:

Tips for cutting thick carbon steel plate with ten thousand watt laser

1. Adopt full power and small nozzle cutting, which can cut smooth products with small taper;

2. The biggest problem of 10000 watt laser cutting carbon steel thick plate is that the nozzle is hot, so it is necessary to strictly adjust the facula to output from the nozzle center;

3. Ensure that the nozzle is not hot. The smaller the nozzle size, the larger the positive focus, and the smoother the section.