Cutting element with improved polycrystalline material toughness and method for making same
US6446740B2 · kind B2 · utility
58Cited by
28References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/5676
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutting element having a cutting table made from sheet segments of commingled ultra hard material and binder. Each segment may be made from a finer or a coarser grade of ultra hard material or from different types of ultra hard material. The segments are aligned side by side over a cutting face of the cutting element to form the cutting table. The material grade and/or the material type of each segment may alternate across the cutting face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.