Laser peening hollow core gas turbine engine blades
US6078022A · kind A · utility
14Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S148/903
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hollow workpiece includes an outside surface through which a port opens to the hollow interior, and a laser peened area on the surface of the workpiece. The laser peened area is created on the surface while the hollow interior is at least partially filled with a substance other than air. A method of laser peening a hollow core gas turbine engine blade includes the steps of providing a hollow core gas turbine engine blade, filling the hollow core with a substance other than air, and then, laser peening the hollow core gas turbine engine blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.