Method for forging large irregular shapes in a closed-die operation in a conventional open-die press
US4305273A · kind A · utility
4Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1979 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Dec 10, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21J13/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forging large irregular shapes in a closed-die operation, particularly for forging a blank to be machined to form a fluid end piece of a pump. The blank has a substantially rectangular parallelepiped body and a block projecting sideways from the body. The apparatus has a die opening of a shape to form the blank. In a single operation in a conventional open-die press a heated workpiece is upset and a portion squeezed sideways to form the block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.