Compound electromachining
US8161641B2 · kind B2 · utility
5Cited by
8References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2006 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49996
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A preform includes an airfoil stub and a dovetail hub. The hub first undergoes electrochemical discharge machining to form a rough dovetail. The airfoil stub undergoes electrochemical machining to form an airfoil. The rough dovetail then undergoes electrochemical discharge machining to form a rough tang. The rough tang is finish machined to form a dovetail extending from the airfoil in a unitary rotor blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.