ABSTRACT
Several coating types are primarily used on diµerent types of forming and cutting tools. ˜ese coatings include metal nitrides (TiN, TiAlN, etc.), carbides (TiC, TaC, etc.), oxides (Al2O3, etc.), borides (TiB2, etc.), and multilayer combinations of these. Also diamond-like and diamond coatings have been successful. ˜is category of applications usually employs various types of cutting ¨uids, rolling ¨uids, pressing oils, and other ¨uids whose primary task is to allow the forming process to proceed without severe wear or galling due to overheating or seizure, rather than keeping friction low and minimizing adhesion.
