Method of making a cutting tool
US7104160B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jun 29, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S76/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a cutting tool such a twist grill, end mill, or the like. The method provides an unbonded assembly including a cylindrical core having ends and an elongate side surface covered partially or completely by a coherent, unsintered layer including ultra-hard abrasive particles for producing an ultra-hard material. The unbonded assembly is subjected to elevated temperature and pressure conditions at which the ultra-hard abrasive is crystographically stable. The sintered product is then recovered that includes a cylindrical core and a layer of ultra-hard abrasive material bonded to the core, and the sintered product is worked to produce one or more cutting edges in the layer of ultra-hard abrasive material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.