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按照ＩＳＯ３６８５－１９７７（Ｅ）对几种新型刀具材料进行了寿命对比试验，分析和探讨了刀具的磨损机理，并用回归分析方法得出了不同材料刀具的寿命方程，计算了刀具在不同切削速度下的寿命
According to ISO3685-1977 (E), the life comparison experiments of several new tool materials were carried out. The wear mechanism of the cutting tools was analyzed and discussed. The life equation of the cutting tools with different materials was obtained by regression analysis. Life expectancy