Integrally repaired bladed rotor
US11655713B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2022 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jan 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Repaired rotors are provided. The rotors are repaired by using an indenter apparatus for plastically straining original portions of the rotor and adjacent repair welds. The weld nugget, adjacent heat affected zones, and the adjacent parent-metal portions or new metal portions, are indented at a weld nugget and heat affected zone, to produce threshold levels of uniform plastic strain which meet or exceed plastic strain levels that provide, when the weld nugget and heat affected zone is heat treated, a recrystallized grain structure metallurgically comparable to the grain structure of the original parent-metal of the rotor. Repaired integrally bladed rotors for gas turbine engines, such as aircraft engines, are provided. Blades for gas turbine engines, including integrally bladed rotors, may be advantageously provided, having been manufactured or repaired as described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.