Method and device for resistance welding of sandwich-type plates using a second electrical circuit
US10179371B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2014 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Dec 24, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Devices and methods for resistance-welding a metallic component to a sandwich sheet having a thermoplastic layer disposed between two metallic cover layers may involve heating a region of the sandwich sheet to be welded such that the thermoplastic layer softens. The cover layers of the sandwich sheet may then be compressed so as to displace the thermoplastic layer from the region of the sandwich sheet to be welded. Electrical circuitry may then be employed to interconnect the metallic cover layers and the metallic component by passing a current through a pair of electrodes positioned on opposing sides of a combination including the sandwich sheet and the metallic component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.