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介绍了超硬刀具材料（金刚石与立方氮化硼）的种类、发展过程、制造方法、性能与应用范围，并列入了 一些切削难加工材料的试验数据。
The types, development process, manufacturing methods, performance and application range of super-hard tool materials (diamond and cubic boron nitride) are introduced. Some experimental data about cutting hard-to-cut materials are also included.