中文摘要：

用机器制造大扫除区域的质量在 impeller 的表演上有强烈影响。以便很快计划大扫除工具路径并且获得好完成表面质量，一个有效、柔韧的工具路径产生方法被介绍，它采用一条途径基于寻找点。用机器制造的大扫除在这提到纸为有一个球结束切割器的一个自由形态的模型是铅笔切割和多层的切切割。为铅笔切割，切割器中心位置能经由判定它是否满足距离要求被决定。在寻找的方向和跟踪方向被决定了以后，由与两分的想法采用寻找点的算法，所有切割器接触(CC ) 指，切割器地点(CL ) 指能被发现，大扫除边界罐头也很快被定义。然后，工具路径被产生。基于铅笔切割的主要概念，一个多层的切切割方法被建议，它与它的半径利用一个球结束切割器不到大扫除的设计半径区域。使用中间的虚拟切割器的一个序列把大扫除区域划分成几层并且为最后的层给尖顶高度忍耐，然后，为所有层的工具路径被计算。最后，计算机实现也在这份报纸被介绍，并且结果证明建议方法是可行的。

英文摘要：

Machining quality of clean-up region has a strong influence on the performances of the impeller. In order to plan clean-up tool paths rapidly and obtain good finish surface quality, an efficient and robust tool path generation method is presented, which employs an approach based on point-searching. The clean-up machining mentioned in this paper is pencil-cut and multilayer fillet-cut for a free-form model with a ball-end cutter. For pencil-cut, the cutter center position can be determined via judging whether it satisfies the distance requirement. After the searching direction and the tracing direction have been determined, by employing the point-searching algorithm with the idea of dichotomy, all the cutter contact （CC） points and cutter location （CL） points can be found and the clean-up boundaries can also be defined rapidly. Then the tool path is generated. Based on the main concept of pencil-cut, a multilayer fillet-cut method is proposed, which utilizes a ball-end cutter with its radius less than the design radius of clean-up region. Using a sequence of intermediate virtual cutters to divide the clean-up region into several layers and given a cusp-height tolerance for the final layer, then the tool paths for all layers are calculated. Finally, computer implementation is also presented in this paper, and the result shows that the proposed method is feasible.