Turbine blade repair
US5755030A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jul 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49728
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of repairing a turbine blade in which damaged material around a lacing wire hole is removed by machining or chemical etching. New metal is then added by welding such that the lacing wire hole is much smaller or completely eliminated and prior to reforming the lacing wire hole, flats may be formed either by the addition or removal of metal in the region of the lacing wire hole so that a lacing wire hole forming drill or machine bit can enter the turbine blade at a surface substantially normal to its direction of travel, thereby minimizing any tendency of the lacing wire hole forming drill or machine bit to snatch or for the blade to vibrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.