Sintered coining process
US5512236A · kind A · utility
7Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1994 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Aug 25, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0207
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process of coining sintered articles of powder metal comprising: blending carbon, ferro manganese, and lubricant with compressible elemental iron powder, pressing the blended mixture to form the articles, high temperature sintering of the articles in a reducing atmosphere and then coining the sintered articles to final shape so as to narrow the tolerance variability of coined articles and substantially eliminate secondary operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.