LASER CUTTING NOZZLE FOR A LASER MACHINING UNIT AND METHOD FOR OPERATING SUCH A LASER MACHINING UNIT

A laser cutting nozzle for a laser machining unit is described, the nozzle including a passage for the laser beam and cutting gas. The passage extends between a nozzle inlet and a nozzle mouth along a passage longitudinal axis. The passage comprises a convergence portion and a divergence portion. In...

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Bibliographische Detailangaben
Hauptverfasser: Speker, Nicolai, Seebach, Johannes, Schellenberg, Artur, Kramlich, Olga
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A laser cutting nozzle for a laser machining unit is described, the nozzle including a passage for the laser beam and cutting gas. The passage extends between a nozzle inlet and a nozzle mouth along a passage longitudinal axis. The passage comprises a convergence portion and a divergence portion. In the entire divergence portion, the wall of the passage forms an angle of inclination relative to the passage longitudinal axis of at most 5°. In addition, the length of the divergence portion is less than 5 times the diameter of the constriction.