Arc welding method, arc welding device and arc welding magnetic field strength adjustment method
US9676049B2 · kind B2 · utility
0Cited by
4References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 1, 2011 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Aug 5, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/40
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A magnetic field is generated in a workpiece in a direction orthogonal to the joining direction, and as a result of the Lorentz force resulting from the magnetic field and the current between the plasma torch and the workpiece, the front tip side of the arc is bent forward in the direction of advancement of the plasma torch and welding is performed. The magnetic field strength of the welded part is adjusted by changing the relative positions of the plasma torch and a butting portion of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.