Non planar cutting element with non planar interface design and tools incorporating such elements
US12428914B2 · kind B2 · utility
0Cited by
7References
22Claims
0Family size
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Key dates
| Filing date | Nov 8, 2019 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Dec 27, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2251/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutting element may include a substrate having a non-planar upper surface with a peripheral edge, and an ultrahard layer. The upper surface may include at least one depression formed at least proximate the peripheral edge; and a compressive stress hoop extending around the upper surface adjacent the peripheral edge, extending into the at least one depression, and configured to reduce tensile stress in the ultrahard layer. The ultrahard layer may be on the substrate and may have a non-planar top surface and an interface formed between the ultrahard layer and the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.