Weld electrode for attractive weld appearance
US8222560B2 · kind B2 · utility
13Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2009 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D7/13
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Weld faces of electrodes for resistance spot welding are formed with a suitable area of protrusions and/or intrusions. The size, shape, and elevation or depths of the protrusions or intrusions are determined for the formation of suitable spot welds in and between metal workpieces such as aluminum or steel panels for vehicle bodies. The protrusions or intrusions are also conceived and used to form an image on at least a visible surface of the welded article to produce an attractive appearance on the surface of the welded sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.