Method for joining single crystal turbine blade halves
US5071059A · kind A · utility
27Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1991 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Mar 11, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49339
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Single crystal, nickel based superalloy turbine blades are formed by fusion welding together two matched blade halves. The matched blade halves are joined by an electrospark deposition process which deposits a weld filler metal along the matched faying surfaces. The deposited weld filler metal is preferably the same nickel based superalloy used to form the single crystal turbine blades. Total heat input to the base metal is minimal so that distortion and metallurgical structure changes of the base metal are virtually nonexistent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.