Synthesis of New Superhard Materials and Their Application to Cutting Tools
نویسندگان
چکیده
Two major areas of effort are encompassed: *• Synthesis of Superhard Mataj^als: The process of Activated Reactive Evaporation is used to synthesize superhard materials like carbides, oxides, nitrides, ultrafine grain cermets, ine deposits are characterized by hardness microstructure and lattice parameter measurements. The synthesis and characterization of various carbides in the Ta-C and W-C systems, and of TiC-Ni cermets is given. 11. Study and the Effect of Superhard Coatings on the Performance of High Speed Steel Tools: Tools of different coating characteristics are tested for machining performance at different speeds and feeds. The mach'ning evaluation and the selection of coatings is based on the rate of deterioration of the coating, tool temperature, and cutting forces. Tool life tests show coated high speed steel tools show a 300% improvement in tool life.
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