Method of repairing turbine blades
US4866828A · kind A · utility
30Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1984 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jun 8, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4975
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of repairing a turbine blade of the type having one or more lacing wire holes comprising the steps of welding additional metal to the blade, subjecting the blade to a stress relieving heat treatment process before which the or each lacing wire hole is effectively eliminated by filling the hole or holes with material the same as or at least compatible with the material from which the blade is made. The turbine blade may be subjected to the application of mechanical forces to restore its form and machining to restore its shape can be gauged to ensure both its form and shape is correct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.