Friction stir weld bonding of metal-polymer-metal laminates
US7628876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2006 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Oct 29, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/56
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In an assembly of facing metal sheets separated by a polymer layer, welded metallurgical bonds are formed between the metal sheets by use of a friction stir weld tool. A rotating tool penetrates the first sheet, locally displaces the encountered portion of polymer film and penetrates into the second sheet. The affected metal of the two sheets is momentarily plasticized and stirred, and the plasticized metal of the two sheets combines to form a weld between the metal sheets. The interposed polymer film may be intended to serve as an adhesive or a vibration damping medium or the like. The facing metal sheets can be layers of facing laminated metal sheet structures that each comprise two metal sheets bonded by an adhesive interlayer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.