End mill formed of tungsten carbide-base sintered hard alloy
US4950328A · kind A · utility
14Cited by
8References
3Claims
0Family size
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Key dates
| Filing date | Jul 6, 1989 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Jul 6, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C29/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An end mill formed of a tungsten carbide-base sintered hard alloy comprising a binder phase including a Co-base alloy, and a hard disperse phase consisting essentially of WC in proportions of: PA0 binder phase: 6-23 wt. %, and PA0 hard disperse phase: 77-94 wt %, the binder phase having a composition of: PA0 Cr: 1-15 wt. %, PA0 W: not more than 5 wt. %, and PA1 the balance of Co and inevitable impurities, the hard disperse phase having a mean grain size of 0.5-2 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.