Polycrystalline cubic boron nitride (PCBN) cutting tools

Cubic boron nitride has emerged as a source material for new generation superhard cutting tools . Polycrystalline13; cubic boron nitride cutting tools are capable of cutting hardened steels, chilled cast irons, superalloys and other difficult to cut materials. In order to realize the potential of cubic boron nitride cutting tools, it is essential to have a proper understanding of this class of superhard materials, which is the subject of the present repor