Welding method for hollow airfoils and intermediate body
US11389900B2 · kind B2 · utility
0Cited by
1References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2020 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Jul 4, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/234
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming an airfoil includes the steps of (a) providing an airfoil body with a hollow having at least one rib extending to an outer surface, and forming the outer surface of the rib to have at least one groove connecting a hollow pocket within a boundary defined by the rib to a location outwardly of the rib, (b) placing a cover over the hollow, and (c) welding the cover to the airfoil body, and such that the rib is welded to the blade cover. An intermediate airfoil body is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.