LASER CUTTING METHOD AND LASER CUTTING TORCH

LASER CUTTING METHOD AND LASER CUTTING TORCH

PURPOSE:To improve cutting speed by injecting an outer assist gas along an inner assist gas and swirling both gasses for injection. CONSTITUTION:When a material to be cut is irradiated with a laser beam 1 and simultaneously oxygen is supplied to the passage 24 of an inner assist gas, a swirling gas...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: UENO HITOSHI, SAKAI DAIJI
Format: Patent
Sprache:eng
Schlagworte:
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE:To improve cutting speed by injecting an outer assist gas along an inner assist gas and swirling both gasses for injection. CONSTITUTION:When a material to be cut is irradiated with a laser beam 1 and simultaneously oxygen is supplied to the passage 24 of an inner assist gas, a swirling gas flow f1 is formed by a flow straightening member 26. When oxygen is supplied to the passage 22 of an outer assist gas, a swirling gas flow f2 is formed by a flow straightening member 28. The swirling gas flow f1 prevents the lowering of oxygen purity caused by the atmospheric air taken in and also by combustion gasses and slag mixed in. By the ambient protection through the swirling gas flow f2, the directivity of the swirling flow f1 is protected from being interfered by an external air flow. Consequently, a new assist gas with a high purity is always supplied to the cross-section.