Chart assist gas solutions improve the quality and efficiency of precision laser cutting processes.
Industrial laser cutting is the process of focusing a high intensity laser beam at a sheet of metal to produce a cut. However, when narrow tolerances are required, the beam alone cannot produce a clean cut. For that, a laser must use the help of an assist gas.
Assist gas, either nitrogen or oxygen, is used to exclude regular atmospheric air and blow away the molten material. Blasting this gas at high velocity and pressure blows away the metal that has been melted by the laser. It also helps take the heat away from the metal sheet.
With oxygen, the laser power is magnified and more heat is produced. This allows for faster cutting speeds. The disadvantage is that oxidation occurs on the cutting edge and more cleanup is needed if the metal is going to be further processed.
When lasers use nitrogen for cutting, the material is melted solely by the laser power and blown out of the cut by the energy of the nitrogen gas stream. Unlike cutting with oxygen, the melt-shear removal is the only active process since inert gases do not react with the molten metal and no additional heat is generated.
For both nitrogen and oxygen, an uninterrupted delivery of high quality gas is vital.
Chart Laser Assist Gas Solutions eliminate the need for high pressure pumps, compressors, cylinder cradles and surge tanks in order to achieve the pressure requirements of most modern lasers. High pressure liquid storage tanks are available for operations of all sizes.
Small Volume Gas Users
Medium Volume Gas Users
Through its novel two cylinder, four stroke system, Trifecta® provides the application with a continuous supply of pure gas at pressures and flows up to 550 psig and 15,000 scf/hr respectively.
For full features and advantages and model specifications visit our Trifecta Laser Assist Gas Solutions page.
Provides the capability to fast fill tanks operating at pressures up to 500psig:
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