Coated Tools for Metal Cutting – Features and Applications

Abstract Demands on products and production processes are the driving factors behind developments in today's cutting technologies. Innovations such as the application of advanced work material concepts, together with needs for non-pollutant machining processes, increased flexibility and improved cost-effectiveness trigger the application of high performance processes, imposing higher stresses on tools. This often reveals inadequate wear resistance in conventional tool materials. Coating technology is one means of achieving a crucial enhancement in tool performance. However, there is such a huge variety of available coating materials, coating structures and coating processes that careful selection of a suitable coating system is essential. Using accessible know-how concerning coated cutting tools and their behaviour in a wide range of different machining tasks, the paper shows methods to test, evaluate and influence the properties of tool coatings. Applying this know-how may contribute to improving the systematic selection and development of coatings for specialised cutting operations.

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