Hard coatings are used to increase the wear and frictional properties of cutting tools. The coatings are deposited using Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD) with typical thickness of several micrometers. Among the most important coatings belong TiAlN, CrN, TiN, DLC, ZrN, Al2O3 and TiCN. Many of these coatings must have good frictional properties to ensure good wear resistance and long life time of the tool. This application report demonstrates the results of tribological characterization and thickness measurements of hard coatings for cutting tools.
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