Aluminium/copper heterogeneous welding
US10259068B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 31, 2013 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | May 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method of assembling a first thin copper part and a second thin aluminum part, each to be welded using heterogeneous welding, includes placing the ends of the parts so that they face one another and pressing the ends against one another so as to constitute a welding zone extending therebetween; and applying an aluminum alloy by way of filler metal to the welding zone using a low energy welding method in which the electric arc and the meltable filler wire are wider than the combined thickness of the parts, the parts being held so as to maintain the welding zone at the top using a fixing element including at least two rigid blocks of a conductive material whose thickness is between 1 and 2 mm, whose length is greater than that of the parts and whose width is sufficient to hold the parts, and a pressure fixing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.