How to use laser cutting to cut bright surfaces? Shenyang laser cutting manufacturer explains to you:

In laser cutting technology, the cross-section of carbon steel can be cut very smoothly, achieving a "mirror" effect, commonly known as "smooth cutting". Bright surface cutting is mainly used for medium thick carbon steel, and steel plates that are too thin or too thick cannot achieve bright surface cutting.

1. Control the cutting speed. If the cutting speed is too fast, the material will not burn completely, and the workpiece will not be cut through. If the speed is too slow, it will cause excessive combustion, and the workpiece will melt and deform. On the premise of ensuring the quality of the workpiece, the cutting speed should be increased as much as possible.

2. Adjust the nozzle height. The nozzle height will affect the beam quality, oxygen purity, and airflow direction. The lower the nozzle, the better the beam quality, the higher the oxygen purity, and the smaller the airflow direction. Therefore, bright surface cutting should be as low as possible.

3. Adjust the cutting pressure. In carbon steel oxygen cutting, the combustion of the material releases a large amount of heat, so the oxygen pressure should not be too high. Generally speaking, the lower the pressure within the cutting range, the brighter the cutting section. However, to ensure cutting stability, a certain proportion is usually added to the cutting pressure.

4. Adjust the cutting power. For plates of different thicknesses, the larger the thickness, the higher the required power.

5. Adjust the cutting focus. The beam emitted from the nozzle of a fiber laser is of a certain diameter, and smaller nozzles are usually used for cutting on bright surfaces. If the focus is too large, it can cause the nozzle to heat up, affecting cutting quality and stability, and even directly causing nozzle damage. Therefore, it is necessary to find the large focal point value that the nozzle size can withstand and then make adjustments.

6. Choose nozzle size. The smaller the half nozzle, the brighter the cutting section and the better the effect.

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