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US 2013/0256288 A1Published application
Synchronized magnetic arc steering and welding
AssigneeLincoln Global, Inc.
InventorsWilliam T. Matthews, Steven R. Peters, Steven R. Cole
Life of this patent
Estimating the term…
Abstract
A system and method of welding is provided where a pulse welding power supply is coupled with a magnetic field power supply such that a magnetic field can be generated proximate to a welding arc during pulse welding. During pulse welding a magnetic field is used to direct the welding arc and a droplet being transferred in the arc.
Claims20
A welding system, comprising:
- a welding power supply which outputs a welding current signal to an electrode so that a welding arc is generated between said electrode and a workpiece, said welding current signal comprising a plurality of current pulses;
- and
- a magnetic field power supply which outputs a magnetic field current signal to a magnetic steering device, said magnetic field current signal comprising a plurality of magnetic current pulses;
- wherein said magnetic steering device is positioned adjacent to said welding arc and said magnetic steering device uses said magnetic field current signal to generate a magnetic field to move said welding arc during welding;
- and
- wherein said plurality of said magnetic current pulses are synchronized with respect to at least some of said plurality of current pulses of said welding signal.
3 more elements
A welding system, comprising:
- a welding power supply which outputs a welding current signal to an electrode so that a welding arc is generated between said electrode and a workpiece, said welding current signal comprising a plurality of current pulses;
- and
- a magnetic field power supply which outputs a magnetic field current signal to a magnetic steering device, said magnetic field current signal comprising a plurality of magnetic current pulses;
- wherein said magnetic steering device is positioned adjacent to said welding arc and said magnetic steering device uses said magnetic field current signal to generate a magnetic field to move said welding arc during welding;
- wherein said plurality of said magnetic current pulses are synchronized with respect to at least some of said plurality of current pulses of said welding signal, and wherein each of said at least some of said current pulses causes a molten droplet to separate from a consumable and wherein said plurality of magnetic current pulses are synchronized with said at least some of said plurality of current pulses of said welding signal so that said magnetic current pulses are at a peak level at least immediately after each of said molten droplets separate from said consumable.
2 more elements
A method of welding, comprising:
- providing a welding current signal to an electrode so that a welding arc is generated between said electrode and a workpiece, where said welding current signal comprises a plurality of current pulses;
- providing a magnetic field current signal to a magnetic steering device, where said magnetic field current signal comprises a plurality of magnetic current pulses;
- positioning said magnetic steering device adjacent to said welding arc and using said magnetic field current signal to generate a magnetic field by said magnetic steering device to move said welding arc during welding;
- and
- synchronizing said plurality of said magnetic current pulses with respect to at least some of said plurality of current pulses of said welding signal during welding.
2 more elements
Dependencies are inferred from the claim text.