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Improved wear behavior compared to chemically vapor deposited (CVD) and physically vapor deposited (PVD) TiN coatings have been found with (Ti,Al)N, (Ti,Zr)N, and (Ti,Al,V)N coatings using high-speed steel and cemented carbide substrates. High-speed drills coated by (Ti,Al)N films, produced from Ti:Al 50:50 at. % targets revealed in certain cases up to three times better performance than conventionally TiN ion plated tools. In the case of cemented carbides the flank and crater wear could be improved considerably also up to three times compared to CVD TiN/TiC depending on cutting conditions. Basic correlations between process and film characteristics of new multicomponent hard coating have been established. Planar magnetron sources and powder metallurgically prepared targets in an industrially useful ion plating deposition process have been developed and proved under production conditions. The first part of the paper describes the basic research and development of new coating materials. The second part involves the industrial application in batch type and in-line PVD coaters using the sputter ion plating process with magnetron sources in double-cathode arrangements. Finally, wear tests of coated cutting tools, conducted through by different institutions, show the outstanding wear behavior of the new multicomponent coatings.

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