Resistance spot welding workpiece stack-ups having a steel workpiece and an aluminum workpiece with a steel plate
US11065710B2 · kind B2 · utility
1Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Oct 3, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of resistance spot welding a workpiece stack-up. The workpiece stack-up includes at least a steel workpiece and an aluminum workpiece. The method involves attaching a steel plate to the steel workpiece at a weld-site of the workpiece stack-up, passing electrical current between a first welding electrode and a second welding electrode at the weld-site, and terminating passage of electrical current between the first and second welding electrodes in order to form a weld joint. The steel plate serves to stiffen the weld joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.