Method for adhesive bonding together of metal sheets
US8987630B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2006 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is provided for adhesively bonding together a pair of metal sheets to form a laminated sheet metal assembly. A coating of heat curable adhesive is placed on the bottom sheet. The top sheet is placed on top of the coating of adhesive. The stacked metal sheets are then placed between a pair of electrodes. One of the electrodes has a pointed projection that pierces through at least the adjacent sheet and into the adhesive. Electrical current is then conducted between the electrodes so that current flows through the projection to create electric resistance heating and thereby cure the adhesive. The electrodes can be rotating rollers and the metal sheets are fed between the rollers. The electrodes can provide heating and curing of the adhesive in a spot surrounding the pointed electrode and then the remaining uncured adhesive can be cured during later heating of the laminated assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.