The geometry and generation of NC tool paths
The geometry and generation of NC tool paths
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DOI：
10.1115/1.2826244
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发表时间：
1997-06
影响因子：
3.3
通讯作者：
R. Sarma;D. Dutta
中科院分区：
文献类型：
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作者：
R. Sarma;D. Dutta
数控铣削是加工复杂模具表面的主要方法。这些复杂的表面是由铣刀产生的，当铣刀沿着预先指定的刀具路径移动时，它会去除材料。刀具轨迹的精度直接影响加工表面的精度。刀具轨迹的几何形状和间距分别影响扇形高度和加工时间。本文提出了一种新的数控刀具轨迹生成方法。这种方法使零件编程人员可以直接控制被加工表面的扇形高度。该方法还为零件编程人员提供了基于实际指标（如刀具轨迹长度、刀具轨迹曲率和刀具缩回次数）生成各种刀具轨迹的选择。
Numerically controlled milling is the primary method for generating complex die surfaces. These complex surfaces are generated by a milling cutter which removes material as it traces out pre-specified tool paths. The accuracy of tool paths directly affects the accuracy of the manufactured surface. The geometry and spacing of the tool paths impact the scallop height and time of manufacturing respectively. In this paper we propose a new method for generating NC tool paths. This method gives the part programmer direct control over the scallop height of the manufactured surface. The method also provides options to the part programmer for generating a variety of tool paths based on practical metrics such as tool path length, tool path curvature and number of tool retractions.