High energy beam welding of single-crystal superalloys and assemblies formed thereby
US6596411B2 · kind B2 · utility
12Cited by
9References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2001 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12944
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of welding articles formed of single-crystal superalloys, particularly single-crystal nickel-base superalloys containing 10 weight percent or more of refractory metals, and welded assemblies formed thereby. A shim is positioned between the articles, and a backing strip is preferably positioned to contact both articles and bridge the gap between the articles. The articles are then welded together using a high energy beam with a low current pulse frequency and low travel speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.