Generating efficient tool paths from point cloud data via machining area segmentation
Generating efficient tool paths from point cloud data via machining area segmentation
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DOI：
10.1007/s00170-005-0081-2
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发表时间：
2006-09
期刊：
影响因子：
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通讯作者：
Zhengji Teng;Hsi-Yung Feng;A. Azeem
中科院分区：
文献类型：
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作者：
Zhengji Teng;Hsi-Yung Feng;A. Azeem
提出了一种由点云数据直接生成高效三轴球头铣刀轨迹的方法。其主要目标是在具有孤立的复杂加工区域的自由曲面几何形状的加工中实现高效率。根据数据点的几何复杂性将整个加工区域划分为不同的区域，并对分割后的加工区域使用不同尺寸的刀具，从而获得高加工效率。推导了一种迭代的数值方法来确定将复杂度较高的数据点(复杂数据点)与复杂度较低的数据点(非复杂数据点)分开的临界复杂度。一个更大、更高效的球头铣刀被用来加工由非复杂点限定的区域。然后，相对于给定的球头铣刀评估所有数据点的过切情况。通过包围复杂点和过切加工点来建立孤立的复杂加工区域。随后，从标准的商用刀具系列中选择了适用于孤立复杂加工区域的更小且无过切的球头立铣刀。该方法的实现清楚地表明了生成刀具路径的高效性。
This paper presents a method of generating efficient three-axis ball-end milling tool paths directly from point cloud data. The primary objective is to achieve high efficiency in the machining of free-form surface geometry having isolated complex machining area. The high machining efficiency is attained by segmenting the entire machining domain into distinct areas according to the geometric complexity of the data points and by using cutters of different sizes for the segmented machining areas. An iterative numerical procedure is derived to determine the critical complexity that separates the data points with higher complexity (the complex points) from those with lower complexity (the non-complex points). A larger and more efficient ball-end mill is used to machine the area defined by the non-complex points. The gouging condition of all the data points is then evaluated with respect to the given ball-end mill. The isolated complex machining area is established by enclosing both the complex points and the gouge points. The smaller and gouge-free ball-end mill for the isolated complex machining area is subsequently selected from the standard commercial cutter series. Implementation of the presented method clearly demonstrates the high efficiency of the generated tool paths.