Notes

How to correctly select and use optical fiber laser cutting machine nozzles
handheld laser welding nozzle
hypertherm shield 420168
nozzle YK200103H

The selection and use of the nozzle of the fiber laser cutting machine is very important, which is directly related to the cutting effect. So what should we choose?
First of all, when cutting a thin plate below 3mm, it is recommended to select the ��1mm hole aperture. The cutting is thinner. When the ��1.5mm aperture nozzle is selected, the cutting will be thicker.
Secondly, when cutting the mid-plate 3-10mm, when selecting the ��1mm pores, the laser power is high, the cutting is unstable, the gas diffusion area is small, the heat dissipation time is long, resulting in a long cut time, but it can still be used; and select ��1. The nozzle gas diffusion area of ??the 5mm aperture is large, and the gas flow rate is slow, so it is relatively stable during cutting, and it can have a better cutting effect.
Finally, when cutting a thick plate of more than 10mm or more, the nozzle with a diameter of 2mm and above is generally selected. The larger the nozzle aperture, the smaller the protective effect of the focusing mirror. Reasonably choose the laser cutter's nozzle pores. Productivity.
During the laser cutting process, the laser head nozzle is transmitted to the signal processor by collecting a capacitor signal to the signal processor through the ceramic ring, so as to keep the laser cutting machine tracking the workpiece during the cutting process. , Speed up the cutting speed and take away the internal lenses of the scum to protect the laser head.
The type of nozzle is generally divided into single and double layers. Single -layer nozzles are suitable for melting and cutting. Nitrogen is commonly used as auxiliary gas. It is usually used for cutting stainless steel and aluminum alloy. Carbon steel cut.
Naive size selection: The diameter of the nozzle determines the airflow shape, gas diffusion area, and gas flow rate of entering the incision, which will affect the removal and cut stability of the melting material. The position of the air flow, fast speed, fast speed of the incision, the proper position of the workpiece in the airflow, and the stronger the ability to spray to remove the melting material. The user selects the size of the nozzle according to the power of the laser and the thickness of the metal plate used. In theory, the thicker the plate, the larger the nozzle should be used. The greater the pressure of the proportional valve, the greater the traffic, and the more traffic to ensure the pressure to cut the normal section effect.
Different power fiber laser nozzles selection:
Laser power ��6000W
Cut the carbon steel, and the nozzle specification diameter is generally double-layer S1.0-5.0e;
Cut the stainless steel, choose the general specification WPCT single -layer nozzle;
Laser power ��6000W
Cut carbon steel, 10-25mm carbon steel bright surface cutting, the diameter of the cutting nozzle is generally a double-layer high-speed E-type S1.2 ~ 1.8E; the single-layer fan type diameter is generally used in D1.2-1.8;
Cut the stainless steel and choose the common specification WPCT single -layer nozzle.
In general, it is important to correctly choose the nozzle of the laser cutting machine. The operating engineer must change the nozzle pore diameter in real time according to the thickness of the cutting material. Before use, you must carefully choose the nozzle.
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