Diamond Coatings and cBN Coatings for Tools

The introduction of diamond-coated tools for industrial machining of materials, formerly hampered mainly by coating adhesion difficulties, has in the recent years made considerably success, thanks to solutions of this main problem worked out in several R&D laboratories. Compared with the state of the art as to the diamond coating of hard metal and ceramic tools, coating of steel with diamond or cubic boron nitride still needs a considerable amount of R&D work to be done, before field testing of tools can actually be started.