Sintering press with axially controlled deformation, and corresponding method
US11577310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Apr 11, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y30/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sintering press includes at least one upper punch and a lower punch, a powder reservoir for filling a female die of the sintering press with at least one powder material that can be sintered, and a female die for producing a green body using the powder material from the powder reservoir. A first punch of the upper punches and/or lower punches has a punch top which is off-center and asymmetric with respect to an axial axis of the sintering press and which can be moved in the female die. The first punch is asymmetric in shape between the punch top and the base, which shape at least reduces an axial tilting of the punch and a lateral drag of the punch top on an adjacent outer surface in the female die during insertion and extraction therefrom during a pressing step in the production of the green body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.