Tools coated with diamond by chemical vapour deposition

This contribution presents the state-of-art of CVD diamond coated cutting tools. It introduces the different kinds of diamond tools including massive diamond tools and emphasizes the advantages of using diamond as a coating. The deposition process will be drawn out including the reactor technology that is available today. Afterwards the applications are shown that are already established in the industrial manufacturing today. Finally the contribution presents the approaches that are under development to achieve new features and better performances of diamond coated cutting tools. Amongst this are interlayers for the coating if high-cobalt containing cemented carbides, inside coatings of drawing dies, ceramic as a substrate material, micro grinding pencils as well as precision grinding tools.