Experimental Research on the Machining of Composite Materials with Ultra-hard Cutting Tools
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In recent years,the composite material as a new type of engineering material,has been widely used in aeronautical and astronautical industries.The ultra hard materials(diamond and CBN),as the new kinds of tool materials,have been developed in the recent 50 years.In this paper,the kinds and properties of composite workpiece materials and ultra hard tool materials are introduced.The cutting tests of composite materials machining with the ultra hard tools are demonstrated and the test data are presented.This paper has contributed to the efficient machining of composite materials and the application of ultra hard tools.The experimental research shows that the ultra-hard cutting tools are the most effective tools for machining composite materials.PCD,PCBN compund plates and CVD thick film diamond cutting tools can machine different kinds of composite materials,but CVD thin film diamond cutting tool only can machine fabre reinforced composite material.