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回转体零件工艺设计过程中，零件几何形状特征的辨识是生成加工数据的前提，本文提出了一套较完整的算法，特别在槽轮廓辨识及工件台阶轮廓辨识方面作了详细深入的讨论，并给出了算法流程，为加工数据生成奠定了基础．
In the process of the design of the rotating body parts, the recognition of the geometric shape of the part is the precondition of generating the machining data. In this paper, a more complete algorithm is put forward, especially in the groove contour recognition and the step contour identification, The algorithm flow is given, which lays the foundation for processing data generation.