1、前言近年来铝和有色金属的应用日趋广泛,因此也越来越多地采用聚晶金刚石来制造刀具,特别是在加工含12～17％硅的铝合金时必须采用聚晶金刚石刀具。聚晶金刚石刀具理想的使用条件是切削速度应高于80米/分,有时可高达1000米/分以上,往往只能在加工孔时才能达到这样高的切 1, Foreword In recent years, the application of aluminum and non-ferrous metals is becoming more and more widespread. Therefore, polycrystalline diamond is also increasingly used to make knives. In particular, polycrystalline diamond knives must be used when processing aluminum alloys containing 12-17% silicon. Polycrystalline diamond tools ideal conditions of use is the cutting speed should be higher than 80 m / min, and sometimes up to 1000 m / min or more, often only in the processing hole to achieve such a high cut