回顾了金属切削的工艺过程。
介绍微细切削的可行性、优点及其应用前景。
The feasibility, the advantage, and the foreground of micro cutting are introduced.
螺纹切削的进刀方法一般有三种：直进法、斜进法和左右切削法。
There are generally three methods of thread cutting feed:straight cutting method, oblique cutting method and both sides cutting method.
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