In the process of laser cutting the primary factors that influence the cutting efficiency are the quality of the laser beam and power of the laser cutting speed, material thickness, workpiece thickness as well as. Furthermore the design of the nozzle of the cutting head of the laser is also a major element. How does the nozzle impact the cutting efficiency that the laser can provide?
The nozzle is normally placed on the front on the head that cuts lasers that helps control the gas that is used to lubricate the auxiliary part and protect from the focal lens.
On the other hand, in the event that the nozzle's center differs to the center of laser, this could result in the following consequences:
- When the gas used to cut is spraying, the volume of the gas isn't uniform, and the part that is cut will likely contain one side that has been melting, while the opposite side doesn't have a surface that is melting. Particularly, if cutting plate exceeds 3 millimeters it is more seriousand, in some instances, it is not cut.
- When cutting workpieces that have tiny or sharp angles local excess melting can be observed, which can affect the quality of cutting. This can render it difficult to cut plates that are thick.
- Especially during the process of perforating heavy plate, it can result in instability during the process of perforation, and it is difficult to control and the perforation into the plate can result in over-melting.
However when the nozzle's diameter differs, cutting performance that the laser machine produces could be affected by the following factors:
- Sheet thickness less than 3mm
Its diameter for the nozzle made of copper is ph1.5mm and is appropriate for plates that are less than 3mm. The cutting surface is smaller. If you are using an nozzle made of copper that has an ph2mm diameter, it will cut a surface that is more affluent as well as the edges will easily melt.
- Sheet thickness of greater than 3mm
Cutting plates that have greater than 3 millimeters, because of the powerful cutting force it is possible that the heat dissipation period is greater and the time to cut is generally more. If a copper nozzle having an area of ph1.5mm is employed the gas diffusion area is tiny and insecure when usage, however it can be utilized. But, if a diaphragm with a diameter of 2mm is utilized and the gas diffusion area is larger as well as the gas flow rate is low and the cutting steady.
- Sheet thickness of more than 10mm
The copper nozzle that has an oblong diameter of ph2.5mm is only suitable for cutting 10mm or more plates.
In short, the dimension of the nozzle has a significant impact on the quality of cutting as well as the quality of perforation. Today, laser cutting employs nozzles that have ph1.5mm and two-millimetre apertures.
It is important to remember that during the cutting process both the nozzle and the piece of work have to be at a constant distance so that splashes are prevented from returning during cutting. Its diameter decides the form of the gas flow that is entering the slit, as well as the gas diffusion area , and the flow rate of the gas and affects the elimination of the melt as well as the quality that the cut.
We’re fiber laser cutting machine manufacturers in Ahmedabad. The flow of gas into the slit is substantial and the speed is quick and the location of the workpiece within the flow is correct and the capability to spray melt is more powerful. Thus, the bigger the nozzle aperture that is selected is, the less security of the lens. Because when sparks are generated by melt splash the chance of exploding bombs are very high, making the lifetime of the lens much shorter. If the nozzle has been broken or the nozzle is melting, the effect on the quality of cutting is similar to the one described previous.
The nozzle must be used with care and not be damaged to prevent deformation. The melt stains that are left on the nozzle need to be cleared up as quickly as possible. The nozzle needs to be accurate when it is manufactured and must be correctly installed. If the cutting conditions change when cutting because of inadequate nozzle quality then the nozzle must be replaced as soon as possible. If you'd like to learn more about the Fiber Laser Consumables, Contact ADK Engineering & Solutions.
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