Method of producing a composite diamond abrasive compact

US5248317A · kind A · utility

Inventors

• Klaus Tank · Germiston, ZA
• Peter N. Tomlinson · Kimberley, ZA
• Trevor J. Martell · Kimberley, ZA

Key dates

• Filing date: Sep 26, 1991
• Grant date: Sep 28, 1993
• Expiry date: Sep 26, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22F7/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of producing a composite diamond abrasive compact includes the steps of forming an unbonded assembly comprising a cemented carbide body, a layer of catalyst metal on a surface of the carbide body, a layer of carbide particles, alone or in admixture with other particles, on the catalyst metal layer, and a layer of diamond particles on the carbide layer and subjecting the unbonded assembly to conditions of elevated temperature and pressure at which diamond is crystallographically stable to form a composite diamond abrasive compact.