Projection welding of an aluminum sheet
US6791056B2 · kind B2 · utility
58Cited by
14References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 27, 2002 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Dec 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/34
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A projection coined onto a metal sheet, preferably an aluminum sheet, for projection welding the sheet to an adjacent metal sheet. The projection has a thickness greater than the thickness of the sheet on which it is formed. The wall of the projection surrounds a first recess and a second recess is formed in a side of the sheet opposite the projection from which the metal cold flows to form the projection. A welding gun assembly having an improved low interia, fast response to the collapse of the projection welding the sheet having the projection to the adjacent sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.