High density forming process with ferro alloy and prealloy
US6193927A · kind A · utility
6Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jan 8, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0271
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to methods of forming sintered compacts of low alloy steel composition to high density at ambient temperature. The invention provides for a method of forming sintered powder metal articles by forming the sintered powder metal in a die cavity having a clearance for movement of said sintered powder metal to a final shape with increased density after compaction wherein the formed sintered powder metal article has a compaction length which is approximately 3 to 30% less than the original length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.