Method of making submicron cemented carbide cutting tool inserts
US6336951B1 · kind B1 · utility
4Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Feb 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved method of making submicron cemented carbide bodies include wet milling powders of WC and Co and grain growth inhibitors to a slurry, drying the slurry to a powder, uniaxial pressing of the powder to form bodies of a desired shape, and sintering. WC powder is provided with an FSSS grain size, dwc, of less than 1 &mgr;m and a Co powder with an FSSS grain size, dco, such that the ratio dwc/dco is 0.75-1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.