Polycrystalline diamond compacts with partitioned substrate, polycrystalline diamond table, or both

US8950519B2 · kind B2 · utility

Assignee

• US Synthetic Corporation · US

Inventors

• Jair J. Gonzalez · Provo, US
• Kenneth E. Bertagnolli · Riverton, US
• Debkumar Mukhopadhyay · Sandy, US
• David P. Miess · Highland, US
• Mark P. Chapman · Provo, US
• Ronald W. Ward · Pleasant Grove, US
• Nicholas Christensen · Spanish Fork, US
• Damon B. Crockett · Mapleton, US
• Mohammad N. Sani · Reading, GB

Key dates

• Filing date: Sep 16, 2011
• Grant date: Feb 10, 2015
• Expiry date: Sep 24, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2352/00
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

Methods for at least partially relieving stress within a polycrystalline diamond (“PCD”) table of a polycrystalline diamond compact (“PDC”) include partitioning the substrate of the PDC, the PCD table of the PDC, or both. Partitioning may be achieved through grinding, machining, laser cutting, electro-discharge machining, or combinations thereof. PDC embodiments may include at least one stress relieving partition.