The mechanism, features and difficult problems in superfine machining are analyzed. The relationship between the minimum cutting thickness and the circular radius is confirmed.
分析了超微细切削加工的机理、特点及技术难点，并对最小切削厚度与刀具刃口圆弧半径的关系进行了量化分析。
It is a sign of the machining level of ultra-precision cutting reflected by the achieving of minimum cutting thickness. And it will be significant to the analysis of extra thin cutting.
最小切削厚度的获得是反映超精密切削加工水平的重要标志，因此对极薄切削进行分析具有重要意义。
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