HARD BODY, ESPECIALLY HARD METAL WEARING PART, AND PROCESS FOR ITS PRODUCTION

摘要

1. A hard metal part, in particular a hard metal wearing part for tools, having a layer of compounds of titanium with carbon and nitrogen which is built up on a hard metal base part and which has the highest nitrogen content in the vicinity of the base part and the highest carbon content in the vicinity of its surface, characterized in that this layer is in the form of an intermediate layer on which an oxidized hard material layer of aluminium oxide and/or zirconium oxide is applied as an outer layer.