一、概述近二十年来,由于很多高性能的刀具材料研制成功,如陶瓷刀具,多晶金刚石等,因而现代数控机床的功率和转速都提得很高,一般性的中型数控机床(使用8时至12时卡盘)转速约在3500r/mim 以上,尤其在86年日本大坂国际机床展览会上已展出的小型数控机床主轴转速达10000r/mim,可见 First, an overview of the past two decades, due to the successful development of many high-performance tool materials, such as ceramic knives, polycrystalline diamond, etc., so modern CNC machine tools and power are very high, the general medium-sized CNC machine tools When to 12 o’clock chuck) speed of about 3500r / mim above, especially in the 86 Japan Osaka International Machine Tool Show has been on display of small CNC machine spindle speed up to 10000r / mim, we can see