【摘要】 在综述非自由切削研究成果的基础上，本文揭示了实现自由切削的条件，提出了基于单元刀具合理组合的刀具设计思想．介绍了自由切削刀具的设计原理，详细说明自由切削刀具的一个实例──双柱面自由切削刀具，给出了一些实验数据。更多还原

【Abstract】 In the light of the achievements of non-free cutting research, the condition of realizing free cutting and the new idea ofmetal cutting tool design based on the reasonable composition of ECT(elementary cutting tools) are suggested. The principles of free cutting tool design are introduced. An instance of free cutting tools-two cylindrical surfaces tool,and some experiments are introduced too.更多还原