Method of and apparatus for forming forging blank
US7131311B1 · kind B1 · utility
2Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2005 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21K1/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
When an actuator is operated, an upper die is displaced downwardly, pressing a lower surface of a workpiece against a forming surface. After the upper die is displaced upwardly, an ejecting member is displaced upwardly to push the workpiece upwardly by a lower die. As the workpiece is displaced upwardly, an outer circumferential surface of the workpiece is squeezed by a squeezer projecting radially inwardly from an inner circumferential surface of an outer ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.