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6KW CNC Laser Cutting Machine Manufacturer For Metal Plate
Model: BW-G6025
Cutting range: 6000x2500mm (Optional)
Laser power: 1kw/2kw/3kw/4kw/6kw/8kw/10kw/12kw/15kw/20kw/30kw (Optional)
Max moving speed: 120m/min
Max cutting speed: 35-80m/min
Positioning accuracy: 0.03mm
Repositioning accuracy: 0.02mm
Min line width: 0.1mm
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Metal laser cutting does not rely on pure laser power in the cutting process. There is another factor that takes into play such as the wavelength of the laser. Somehow the shorter the laser wavelength, the finer the cutting. Fiber laser has 1064nm while CO2 laser has 10640nm wavelength. Certain metal does not react really well with 10640nm wavelength.
Assist gas is an important factor in multiplying cutting prowess and getting the desired result. Oxygen-assisted cut (OAC) is a very effective method for laser cutting as Oxygen will react with metal and will ease the cutting process at the drawback of a blackened result. Nitrogen assist gas will effectively make the laser cutting weaker as nitrogen is an inert gas. Inert gas will, however, prevent the material from oxidizing therefore cutting using pure ablation.
At this moment, fiber laser cutting would be the best. It provides good cutting results and generally requires lower power compared to CO2 laser at the same thickness and generally produces finer cuts.
500w Fiber Laser can cut 5mm steel with oxygen assist gas and around 2mm steel with nitrogen, while 150w CO2 laser can cut 1.2mm steel with oxygen assist gas and can’t cut any metal with nitrogen assist gas. You can see that the CO2 laser is making the OAC process and the fiber laser is actually ablating the material.
Higher power CO2, while rivaling fiber laser performance, is generally a lot more expensive to operate and purchase.
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