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Precipitate-strengthened hard metal-diamond composite

ROBERTSON ANDREW / BIRD MARC

A cutting table for a cutting element, including: a diamond phase; a tungsten carbide phase; a cobalt-tungsten metallic phase; and an intermetallic phase comprising Co3WCx, where 0≤x≤1. Also disclosed is a method of manufacturing a cutting element, the method including: sintering diamond and tungsten carbide particles in the presence of Co and W to about 1520° C. or greater under pressure of about 57 kbar or greater to form a hard metal-diamond composite compact and solubilize carbon and tungsten within the compact; cooling the cutting element at about 1° C./sec or greater; and subsequent to cooling the cutting element, heat-treating the cutting element to precipitate carbon and tungsten in the compact as an intermetallic phase.

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Precipitate-strengthened hard metal-diamond composite

ROBERTSON ANDREW / BIRD MARC

A cutting table for a cutting element, including: a diamond phase; a tungsten carbide phase; a cobalt-tungsten metallic phase; and an intermetallic phase comprising Co3WCx, where 0≤x≤1. Also disclosed is a method of manufacturing a cutting element, the method including: sintering diamond and tungsten carbide particles in the presence of Co and W to about 1520° C. or greater under pressure of about 57 kbar or greater to form a hard metal-diamond composite compact and solubilize carbon and tungsten within the compact; cooling the cutting element at about 1° C./sec or greater; and subsequent to cooling the cutting element, heat-treating the cutting element to precipitate carbon and tungsten in the compact as an intermetallic phase.

Precipitate-strengthened hard metal-diamond composite

ROBERTSON ANDREW / BIRD MARC

A cutting table for a cutting element, including: a diamond phase; a tungsten carbide phase; a cobalt-tungsten metallic phase; and an intermetallic phase comprising Co3WCx, where 0≤x≤1. Also disclosed is a method of manufacturing a cutting element, the method including: sintering diamond and tungsten carbide particles in the presence of Co and W to about 1520° C. or greater under pressure of about 57 kbar or greater to form a hard metal-diamond composite compact and solubilize carbon and tungsten within the compact; cooling the cutting element at about 1° C./sec or greater; and subsequent to cooling the cutting element, heat-treating the cutting element to precipitate carbon and tungsten in the compact as an intermetallic phase.

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Titel:

Precipitate-strengthened hard metal-diamond composite

Beteiligte:

ROBERTSON ANDREW (Autor:in) / BIRD MARC (Autor:in)

Erscheinungsdatum:

08.10.2024

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Englisch

Klassifikation:

IPC: E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / C04B Kalk , LIME

Ähnliche Titel

PRECIPITATE-STRENGTHENED HARD METAL-DIAMOND COMPOSITE

ROBERTSON ANDREW / BIRD MARC | Europäisches Patentamt | 2022

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