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CURVATURE-BASED TOOL-PATH SEGMENTATION FOR FEEDRATE OPTIMIZATION IN MICROMILLING

机译:基于曲线的刀具路径细分,用于微细加工中的工件优化

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This paper presents a novel method of curvature-based tool-path segmentation for decreased machining time that overcomes feedrate limitations due to scale effects in micromilling. When accounting for tool size effects in the microscaie feedrate optimization process, the limitation on maximum feedrate imposed by required precision is reduced. The extent of the maximum feedrate limitation depends on the sampling rate of the real-time trajectory generation and motion control system. The curvature-based segmentation method is proposed to increase the achievable sampling rate by intelligent selection of the interpolation technique applied to segments along the tool path. In application to a case study, the curvature-based segmentation method is shown to achieve reductions in machining time, thus providing an enhanced methodology for tool-path segmentation and feedrate optimization in high-speed, high-precision micromilling operations.
机译:本文提出了一种用于减少加工时间的基于曲率的刀具路径分割的新方法,该方法克服了由于微铣削中的缩放效应而导致的进给率限制。当考虑到微刀进给率优化过程中的刀具尺寸影响时,所需精度对最大进给率的限制会减少。最大进给速度限制的程度取决于实时轨迹生成和运动控制系统的采样率。提出了基于曲率的分割方法,通过智能选择应用于沿刀具路径的线段的插值技术来提高可达到的采样率。在案例研究中,基于曲率的分割方法可以减少加工时间,从而为高速,高精度微铣削加工中的刀具路径分割和进给率优化提供了一种增强的方法。

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