NOZZLE FOR LASER PROCESSING
To provide a nozzle for laser processing which can supply an assist gas so as to apply a stagnation pressure according to an attitude of an object preferably while inhibiting complication of the structure.SOLUTION: A nozzle for laser processing radiates a laser beam while supplying an assist gas to...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a nozzle for laser processing which can supply an assist gas so as to apply a stagnation pressure according to an attitude of an object preferably while inhibiting complication of the structure.SOLUTION: A nozzle for laser processing radiates a laser beam while supplying an assist gas to process an object and includes: a nozzle body. The nozzle body has an outlet part in which an inner diameter of an internal space allowing the assist gas and the laser beam to pass therethrough reduces along an axial direction and which is used to inject the assist gas and the laser beam to the outside. The outlet part has an opening surface which inclines relative to a vertical surface of a center axis of the nozzle body. The opening surface has an area smaller than an internal cross-section which passes through a most upstream position of the opening surface and is orthogonal to the center axis.SELECTED DRAWING: Figure 3
【課題】構成の複雑化を抑制しながらも、対象物の姿勢に応じて淀み圧を好適に与えるようにアシストガスを供給可能とする。【解決手段】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するためのレーザ加工用ノズルは、ノズル本体を備える。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の内径が軸方向に沿って減少し、且つ、アシストガス及びレーザ光を外部に射出するための出口部を有する。出口部は、ノズル本体の中心軸の垂直面に対して傾斜した開口面を有する。開口面は、開口面のうち最上流位置を通り、且つ、中心軸に直交する内部断面より小さい面積を有する。【選択図】図3 |
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