Near net shape forging process for compressor and turbine wheels and turbine spacer wheels
US8256260B2 · kind B2 · utility
0Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2011 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Jan 31, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4932
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A forging method including extruding a billet to form a ring shaped hollow workpiece; reducing a cross section of the workpiece; and forging the workpiece in a closed die having a first split die including a plurality of first die segments and a second split die including a plurality of second die segments by sequentially advancing pairs of opposing die segments from the first split die and second split die towards each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.