Joined body of dissimilar metals and method for producing joined body of dissimilar metals
US10076799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2014 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Dec 26, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A joined body of dissimilar metals, in which a flared joint is formed and which have a high joint strength, is provided. The joined body contains a first metal member having a curved surface portion, a second metal member having a higher melting point than the first metal member and joined to the first metal member to form the flared joint, and a joining metal portion formed by irradiating the first metal member and a filler material disposed between the first and second metal members with a laser. An intermetallic compound formed at the interface between the second metal member and the joining metal portion has a thickness of at most 3 μm. A melted portion and a non-melted portion are formed in the curved surface portion of the first metal member in which the flared joint is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.