How to choose the nozzle of the laser cutting machine

How to choose the nozzle of the laser cutting machine

The nozzle of the laser cutting machine can assist the rapid ejection of gas, which can effectively prevent debris such as molten stains from bouncing upwards, thereby protecting the focusing mirror. At the same time, it can control the gas diffusion area and size, which will affect the cutting quality of the laser cutting machine. At the same time, the aperture size of the nozzle will vary according to the thickness of the cutting material.

Laser cutting machine copper nozzle

1. When cutting thin plates (below 3mm). The nozzle with a diameter of Φ1mm will be thinner, while the nozzle with a diameter of Φ1.5mm will be thicker, and the corners will be more prone to stains.

2. When cutting thick plates (above 3mm). The nozzle with Φ1mm aperture is not very stable when used. Because the cutting power is high at this time, the relative heat dissipation time is long, and the relative cutting time also increases. The gas diffusion area of the nozzle with a diameter of Φ1mm is small, so it is not stable, but it can basically be used. However, the nozzle with a diameter of Φ1.5mm has a large gas diffusion area and a slow gas flow rate, so the cutting is relatively stable.

3. When cutting plates with a thickness of more than 10mm. At present, nozzles with a diameter of 2mm or more than 2mm are generally selected.

However, due to the larger aperture of the nozzle, the protective effect on the focusing lens is smaller. Therefore, a reasonable choice of the size of the nozzle aperture of the laser cutting machine can make production more efficient.