Influence of monolithic shank type cutter cutting edge modification before PVD coating on their durability

Abstract

To increase the quality of machine tools they are often gained by coatings of hard materials. These layers are applied by PVD and CVD methods. Thanks to these coatings the tool life is increasing or the most applicable cutting speed. The quality of coating depends primarily on the quality of surface, deburring and edge sharpness. The paper deals with evaluation on the impact of adjustment of the cutting edge before tumbling deposition PVD coating on durability of front shank cutters. The article presents results of long-term tests on which basis were established optimal conditions and parameters of tumbling shank milling cutter before applying PVD coating.