Apparatus for electromagnetic forming, joining and welding
US6875964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2003 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Apr 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is disclosed herein an apparatus for electromagnetic forming, joining or welding a workpiece, the apparatus including at least two multi-turn solenoid coils wound in a manner that cooperatively encircles the workpiece to be formed. The apparatus also includes an electrically insulative shell encasing each coil and an electromagnetic current source electrically connected to the coils that generates an electromagnetic field. A hinge mechanism connects the insulative shells and a locking mechanism secures the shells and coils around the workpiece during electromagnetic field generation. A conductive rod joins the solenoid coils and permits series current flow between the coils. The apparatus further includes a shaper that encircles the workpiece and which restricts movement of the workpiece during electromagnetic forming. The shaper concentrates the generated electromagnetic field on the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.