Bonded diamond body, tool comprising the same, and method for manufacturing bonded diamond body

A bonded diamond body having a high bonded strength is provided. The bonded diamond body includes a sintered polycrystalline diamond body, a hard substrate, and a hard layer provided between the sintered polycrystalline diamond body and the hard substrate, the sintered polycrystalline diamond body c...

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Bibliographische Detailangaben
Hauptverfasser:	Sogabe, Mari, Yurugi, Shinichiro, Higashi, Taisuke, Yamaguchi, Tadashi
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BORING CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GRINDING MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS POLISHING POWDER METALLURGY TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TURNING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A bonded diamond body having a high bonded strength is provided. The bonded diamond body includes a sintered polycrystalline diamond body, a hard substrate, and a hard layer provided between the sintered polycrystalline diamond body and the hard substrate, the sintered polycrystalline diamond body containing a diamond grain and a sintering aid, the hard substrate containing tungsten carbide and cobalt, and the hard layer containing cobalt and a hard grain made of a carbide, a nitride, or a carbonitride having a Vickers hardness of 1100 Hv or more.