The influence of nozzles in laser cutting machines is undoubtedly critical, because the application of nozzles will cause great harm to the particle beam.
In order to prevent nozzles from causing hazards in sheet metal processing projects, people should learn and train some professional knowledge about nozzles. The harm of the nozzle to the fiber metal laser cutting machine: the specification of the nozzle only allows the light to be based. In order to prevent the immediate contact between the particle beam on the hole wall and the nozzle, it is obvious that the nominal diameter of the nozzle is reduced. The vapor must be properly coupled to remove the molten material in the kerf and improve the laser cutting efficiency.
Hazards of related nozzle diameters in fiber laser cutting machines: Under the hazards of laser output power and working pressure of auxiliary gas, there is a specified value that can obtain nozzle diameters with higher laser cutting rates. No matter it is co2 or N2, as the auxiliary gas, the experiment of the laser cutting machine for the steel-bonded carbide tool which is very difficult for laser cutting has confirmed that the nozzle diameter is similar to the above results.
The size of the nozzle opening in the fiber laser cutting machine will immediately endanger the working pressure of the nozzle entrance and exit. Scientific research data shows that the nozzle with a diameter of 1.5mm is highly efficient. In addition, the size will also affect the quality. The key point is the size of the thermal hazard area and the total width of the laser cutting. With the increase in the diameter of the nozzle, the thermal hazard area will become smaller. The key reason is that the jet flow is connected to the laser cutting area. The cooling rate of the weld seam, the exchange of the nozzle tube will cause the slit to be too wide, and the small nozzle will make the alignment difficult, which will induce the light to be cut by the small nozzle opening.
In the fiber laser cutting machine, the distance between the relevant nozzle and the steel part will also endanger the coupling of the nozzle cyclone and the steel part. It is a difficult problem in the aerodynamic model. is the key independent variable. If the distance between the nozzles is too close to the steel parts, it will cause obvious back-to-work pressure, which will have the actual effect of driving away the raw materials of the laser cutting machine, and will cause unnecessary damage in a long distance.
The professional knowledge means that the function of the nozzle in the laser cutting machine is realized, and people should improve some mastery of it. At present, there are many types of laser cutting machines on the market, and there are also many types of nozzles that people must master.
