Method for extending the life of attachments that attach blades to a rotor
US6536109B2 · kind B2 · utility
19Cited by
12References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 16, 2001 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Nov 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49323
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for extending the life of the attachments that attach blades to rotors, particularly for aerojet engines. Such a method is notable in that it employs intensive ultrasonic peening of the grooves and of the roots of the blades, this peening being performed with an Almen intensity at least equal to F8A, so as to increase the compressive prestress in the contact surfaces without increasing the roughness of these surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.