Projection welding of an aluminum sheet
US6281466A · kind A · utility
4Cited by
11References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 28, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jun 28, 2019 |
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.