DIAMOND-COATED TOOLS AND PROCESS FOR MAKING

A diamond-coated tool (80) and a process for making it. The process includes a sintering step. In that step, the tool substrate is sintered in an atmosphere and for a time and at a temperature so that superficial, exaggerated grain growth is promoted that imparts a surface roughness which may serve...

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Bibliographische Detailangaben
Hauptverfasser:	MELAGO, WILLIAM M, OLES, EDWARD J, INSPEKTOR, AHARON, BAUER, CHARLES ERIK, MURRAY, GERALD D, GRAB, GEORGE P
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BORING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBINED OPERATIONS DIFFUSION TREATMENT OF METALLIC MATERIAL GRINDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS POLISHING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING TURNING UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	A diamond-coated tool (80) and a process for making it. The process includes a sintering step. In that step, the tool substrate is sintered in an atmosphere and for a time and at a temperature so that superficial, exaggerated grain growth is promoted that imparts a surface roughness which may serve as anchoring sites during a subsequent diamond coating step which is performed by a vapor deposition technique. The diamond-coated tool includes a large grain substrate surface, and a high bond strength between the diamond coating and the substrate surface.