Method for powder metallurgy compacting
US3939241A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1974 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Oct 4, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4981
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for hot isostatically compacting powder metallurgy charges in sealed metal containers wherein the container may be easily removed from the charge after compacting by providing a separating medium between the container interior and the powder metallurgy charge to prevent bonding during subsequent hot isostatic compacting, and producing during hot isostatic compacting a residual stress in said container; slitting of the container after compacting releases the residual stresses and in the absence of bonding to the compact causes the container to move away from the compact, thereby avoiding typical container-removal operations such as machining and pickling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.