利用超硬材料(人造金刚石、立方氮化硼)制造的精整加工工具,其优越性和经济性已被普遍接受。在液压气动行业中,利用它对各种阀体孔等进行精加工,已收到显著的效益。但目前由于该工具的品种规格尚不齐全,影响了它应用的普遍性。我所参考国 The use of super-hard materials (artificial diamond, cubic boron nitride) manufacturing finishing tools, its superiority and economy has been generally accepted. In the hydraulics and pneumatic industry, it has received significant benefits with its use for finishing various valve body holes and the like. But at present, due to the incomplete specification of the tool, the universality of its application is affected. My reference country