Powder forging process
US5547632A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 20, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Dec 20, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/17
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a powder forging process, a heated green compact is placed in a stationary die and subjected to a press-forging carried out mainly to reduce the thickness thereof by cooperation of the stationary die with a movable die. The press-forging is performed at two pressing steps. After placement of the green compact into the concave molding portion of the stationary die, the pressing step were carried out. Thus, it is possible to produce a forged product having a high strength and a high toughness. A heated heat insulator also may be placed in the stationary die to provide a temperature-retaining effect to the green compact before and during pressing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.