Composite polycrystalline diamond body

a polycrystalline diamond and composite technology, applied in the field of composite polycrystalline diamond bodies, can solve the problems of pdc being unable to cut rock or stone, affecting the quality of the material,
US20120241225A1Inactive Publication Date: 2012-09-27INT DIAMOND SERVICES
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
INT DIAMOND SERVICES
Publication Date
2012-09-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

In this novel PDC cutter, diamond powders of different composition and / or different grain size, are distributed, shaped, and compacted with a novel pressing tool, in multiple stages, spatially arranged into different regions of the PDC diamond body, then HPHT sintered to form one PDC body with spatially varying hardness, toughness and thermal resistance more optimal for machining, drilling and / or cutting of hard rock and stone.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of no other prior applications.INVENTIVE FIELD

[0002] Exemplary embodiments are directed to a body for use in cutting, machining, drilling and similar operations, and a method of manufacture of the body. More particularly, exemplary embodiments are directed to a composite polycrystalline diamond body and method of manufacture that may be used for cutting, machining, drilling and other similar operations.BACKGROUND

[0003] As used in the following disclosure and claims, the term polycrystalline diamond (PCD) is intended to refer to the type of material that is made by subjecting diamond crystals to a high temperature and pressure that results in intercrystalline bonding of the individual diamond crystal. In exemplary embodiments, the intercrystalline bonding is usually facilitated by use of a specific catalyst family of transition metals, usually as molten fluid. Although catalysts greatly aid the sinter bond...

Claims

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