Near net shape forging process for compressor and turbine wheels and turbine spacer wheels
US7895874B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Apr 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4932
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forging a workpiece includes (a) incrementally advancing the workpiece in a closed die forge, the closed die forge including a stationary, flat die and a first split die including a plurality of first die segments, each die segment being incrementally advanced in sequence to contact the incrementally advancing workpiece; (b) replacing the stationary, flat die with a second split die including a plurality of second die segments; and (c) forging the workpiece forged in (a) between the first split die and the second split die, wherein the first die segments are stationary and at least some of the plurality of second die segments are incrementally advanced in sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.