Joined structure of dissimilar metallic materials
US6692841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Oct 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12903
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A friction welded joint structure includes friction welded dissimilar first and second metallic materials. The first metallic material has a rigidity greater than the second metallic material. The angle of the first metallic material to a free edge of the first metallic material, at an end portion of a joined surface between the first and second metallic materials, is greater than or equal to 120 degrees or in the range of from 55 degrees to 85 degrees. A reaction layer between the first and second metallic materials is more than zero and less than or equal to 20 &mgr;m. The first metallic material is copper. The second, which has the smaller rigidity, is aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.