Joined incompatible metallic parts and method of joining
US10724561B2 · kind B2 · utility
7Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Oct 28, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A technique for joining parts of incompatible metals involves cold spraying a 150-900 micron thick layer of a metal compatible with the second part onto the first part, and friction stir joining the parts by lap welding while keeping a tool of the FSJ tool at least 300 microns away from the first part (less layer) throughout the joining, to avoid damaging the cold spray to first part interface, and formation of intermetallics. Fatigue resistance was tested, with and without a sealant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.