Process and apparatus for welding sheet metal edges
US5567335A · kind A · utility
43Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Dec 9, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Sheet metal edges to be welded are preheated prior to welding. At a given welding speed, this results in a smaller temperature gradient in the material to be welded. Consequently the welding speed can be increased, or material which would otherwise provide poor weld quality can be welded at a high temperature gradient. The preheating is carried out for example by high-frequency excitation of the material to be welded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.