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Quantitative study of melt flow dynamics inside laser cutting kerfs by in-situ high-speed video-diagnostics

机译:激光切割切口内部熔体流动动力学的原位高速视频诊断定量研究

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Within this paper the melt flow dynamics of the laser cutting process during laser cutting of 6 mm thick stainless-steel using a disk laser with a laser power of 5 kW and nitrogen assist gas with a pressure up to 20 bar, is analyzed by in-situ high-speed video-diagnostics (>100,000 fps). An advanced algorithm is used to determine spatially resolved the melt flow dynamics on the laser cutting front. The results reveal a link between the fluid dynamics, the cutting velocity, the assist gas pressure and the average roughness of the cut flank.
机译:在本文中,通过以下方法分析了在使用直径为5 kW的盘形激光器和压力高达20 bar的氮气辅助气体对6毫米厚的不锈钢进行激光切割时,激光切割过程中的熔体流动动力学。原位高速视频诊断(> 100,000 fps)。使用先进的算法来确定激光切割前端的熔体流动动力学在空间上的解析度。结果揭示了流体动力学,切削速度,辅助气体压力和切削齿腹的平均粗糙度之间的联系。

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