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发明公开
CN109789513A 用于激光加工设备的具有收敛区段和发散区段的激光切割喷嘴；具有这种喷嘴的激光加工设备；用于运行这种激光加工设备的方法 有权

用于激光加工设备的具有收敛区段和发散区段的激光切割喷嘴；具有这种喷嘴的激光加工设备；用于运行这种激光加工设备的方法
摘要：
本发明说明了一种用于激光加工设备(20)的激光切割喷嘴(1)，所述激光切割喷嘴具有在喷嘴入口(4)和喷嘴出口(5)之间沿着通道纵轴线(6)延伸的、用于激光束和切割气体的通道(2)。所述通道(2)具有收敛区段(8)和发散区段(9)。在整个发散区段(9)中，所述通道(2)的壁相对于所述通道纵轴线(6)构成最大为5°的倾斜角度。此外，所述发散区段(9)的长度(LD)小于所述狭窄部位(10)的直径(dmin)的5倍。此外，本发明说明了一种具有这种激光切割喷嘴(1)的激光加工设备和一种用于运行这种激光加工设备的方法。
摘要（英）：

The invention relates to a laser cutting nozzle (1) for a laser machining system, comprising a passage (2) for the laser beam and cutting gas, said passage running between a nozzle inlet (4) and a nozzle opening (5) along a passage longitudinal axis (6). The passage (2) has a convergence section (8) and a divergence section (9). In the entire divergence section (9), the wall of the passage (2) maximally forms an angle of inclination of 5 degrees relative to the passage longitudinal axis (6). Additionally, the length (L D) of the divergence section (9) is less than 5 times the diameter (d min)of the narrow point (10). The invention further relates to a laser machining system comprising such a laser cutting nozzle (1) and to a method for operating such a laser machining system.

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