NOZZLE FOR LASER PROCESSING

To provide a nozzle for laser processing which enables laser processing to be performed preferably regardless of an attitude of an object.SOLUTION: A nozzle for laser processing radiates a laser beam while supplying an assist gas to process an object and includes: a nozzle body; curved surface membe...

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Bibliographische Detailangaben
Hauptverfasser: AKAHANE TAKASHI, YOSHIDA KAZUHIRO, OKUDA TAKEHISA, KASAI KENICHI, TANIUCHI TOSHINORI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a nozzle for laser processing which enables laser processing to be performed preferably regardless of an attitude of an object.SOLUTION: A nozzle for laser processing radiates a laser beam while supplying an assist gas to process an object and includes: a nozzle body; curved surface members; and a cap member. The nozzle body has a substantially cylindrical shape in which an internal space allowing the assist gas and the laser beam to pass therethrough extends along an axial direction. The curved surface members are provided along a circumferential direction of the nozzle body on an outer surface of the nozzle body. The cap member extends along the axial direction of the nozzle body through a gap at the outer side of the nozzle body and its inner surface contacts with at least one of the curved surface members.SELECTED DRAWING: Figure 3 【課題】対象物の姿勢に関わらずレーザ加工を好適に実施可能なレーザ加工用ノズルを提供する。【解決手段】レーザ加工用ノズルは、アシストガスを供給しながらレーザ光を照射することにより対象物を加工し、ノズル本体、曲面部材及びキャップ部材を備える。ノズル本体は、アシストガス及びレーザ光が通過可能な内部空間が軸方向に沿って延在する略円筒形状を有する。曲面部材は、ノズル本体の外表面に、ノズル本体の周方向に沿って設けられる。キャップ部材は、ノズル本体の外側に間隙を介してノズル本体の軸方向に沿って延び、内表面が少なくとも1つの曲面部材に接触する。【選択図】図3