Application of surface relief to spot welding electrodes
US8350179B2 · kind B2 · utility
8Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Aug 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/007
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The workpiece-contacting surface of the spot welding electrode may be suitably modified to incorporate a desired shape or form, generally comprising a depressed region outlining a recognizable shape, to form aesthetically-pleasing or functional features in the surface of a workpiece during resistance spot welding. Methods for creating the desired form in the spot welding electrode including abrasion, upsetting, and electrical discharge machining are disclosed. Preferably the electrode face is shaped and subsequently redressed during welding operations at the welding station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.