HARD COATING ON TOOLS
ABSTRACT
Present seminar report covers new features of TiN TiA1N, etc. special coating on cutting tools. The initial articles deal with necessity and types of tool coating. The industrial tool coating procedures PVD and CVD have been explained in detail. Preparation of tool surface for coating process is equally important for good adhesion and long life. The performance of coated tools is critically examined in various applications under several parameters. These results are graphically represented for better understanding. Different types of coatings having different properties are discussed. The relative performances of various coatings are graphically represented for milling cutters and drills.
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