Internally reinforced polycrystalling abrasive insert
US5524719A · kind A · utility
111Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Jul 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S76/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An insert for a drill bit is set forth. The insert is formed with an elongate body, typically having a cylindrical cross section terminating at an exposed outer end. The outer end is covered with a polycrystalline disc. In the present disclosure, the polycrystalline disc is reinforced with an insert which is wholly captured in the polycrystalline material. In one form, a circular disc is set forth. In another aspect, multiple reinforcing members can be incorporated. They have the form of multiple discs. This reduces stress concentration in the polycrystalline clad insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.