An algorithm of 3-axis interference-free tool path is researched and realized by cutter location surface and protection surface of discrete triangular facets of machined surface.
介绍和扩大了数控加工中的刀位面和保护面的概念，研究和实现了一种基于曲面离散生成三轴加工无干涉刀具轨迹的算法。
The interference-free tool path planning is given.
给出了平头铣刀的无干涉路径规划。
The results show that this method can quickly determine the region of collision detection, and generate an interference-free tool path.
算例结果表明，该方法能够快速确定干涉检测范围，准确生成无干涉刀位轨迹。
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