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Scan path strategy for laser processing of fragmented geometries

机译：碎片后几何的激光加工扫描路径策略

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摘要

A new scan path strategy is presented to reduce the duration of laser processing of geometries consisting of scattered, unconnected processing areas of a small size. We refer to these as fragmented geometries. The novelty of this strategy is to first identify optimized parallel scan lines for the overall shape using the Radon transform, which provides information about the most productive scan line orientations. The lines are then chopped into mark and jump vectors exploiting fast laser power modulation to precisely process the fragmented structure. An experimental study was conducted with a galvanometer scanner and a set of exemplary geometries comparing the proposed strategy with conventional raster scanning and a fill strategy. The results show a reduction in processing time with the new algorithm of up to 57% depending on the geometry. This finding indicates, that the new strategy is a promising approach for improvement of productivity for areal laser processing applications.
机译：提出了一种新的扫描路径策略，以减少由散射的未连接的处理区域组成的几何形状的激光加工持续时间。我们将这些称为分散的几何形状。该策略的新颖性是首先使用氡变换来为整体形状识别优化的并行扫描线，这提供了有关最高生产扫描线方向的信息。然后切成线条和跳转向量利用快速激光功率调制以精确处理碎片结构。使用电流计扫描仪和一组示例性几何形状进行了一种实验研究，将所提出的策略与传统光栅扫描和填充策略进行比较。结果表明，根据几何形状，新算法的处理时间降低了高达57％。这一发现表示，新策略是提高面积激光加工应用的生产率的有希望的方法。

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