Polycrystalline diamond compacts including a domed polycrystalline diamond table, and applications therefor
US9404310B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2013 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Sep 18, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/52
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) including a domed polycrystalline diamond (“PCD”) table that exhibit improved wear resistance and/or thermal stability. In an embodiment, a PDC includes a substrate having an interfacial surface, and a domed PCD table bonded to the interfacial surface of the substrate. The domed PCD table includes an exterior, convex generally cylindrical peripheral surface extending away from the interfacial surface of the substrate. The domed PCD table further includes a domed portion defining an upper, convex generally spherical surface, and an optional chamfer extending between the exterior, convex generally cylindrical peripheral surface and the upper, convex generally spherical surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.