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US RE50,752 E1Granted
Dual wire welding system and method
AssigneeLincoln Global, Inc.
InventorsSteven Peters, Dennis Hartman
Life of this patent
Estimating the term…
Abstract
A system and method of welding is provided where at least two welding electrodes are provided to and passed through a single orifice on a single contact tip and a welding waveform is provided to the electrodes through the contact tip to weld simultaneously with both electrodes.
Claims25
An arc welding system, comprising:
- a welding gun including a contact tip having a channel and an exit orifice;
- an arc welding power supply which provides an arc welding waveform to at least two arc welding consumable electrodes having a circular cross-section via said contact tip;
- and
- a wire feeding mechanism which provides said at least two arc welding consumable electrodes from respective electrode sources to said channel in said contact tip, where said arc welding electrodes pass through said channel in a longitudinal orientation without intertwining or twisting with each other and exit said contact tip through said exit orifice.
1 more element
An arc welding system, comprising:
- a welding torch;
- a contact tip;
- a channel for receiving two arc welding consumable electrodes from respective electrode sources, wherein said arc welding electrodes pass through said torch in a longitudinal orientation without intertwining or twisting with each other and exit said torch;
- and
- a single wire feeder which drives said two arc welding consumable electrodes from said respective electrode sources to said channel;
- wherein said two arc welding consumable electrodes are in contact with each other within said channel;
- wherein said wire feeder comprises a single pair of feed rollers configured to drive said two arc welding consumable electrodes to said channel, said feed rollers being designed for a single wire feeding operation;
- and
- wherein an arc welding power supply provides a single arc welding waveform through said contact tip for consuming said two arc welding consumable electrodes to generate one arc and one weld puddle from said two arc welding electrodes.
6 more elements
An arc welding system, comprising:
- a contact tip, wherein said contact tip aligns two arc welding electrodes from respective electrode sources to pass through said contact tip in a longitudinal orientation without intertwining or twisting with each other and exit said contact tip, wherein said two arc welding electrodes are in contact with each other as the two arc welding electrodes pass through said contact tip, and wherein an arc welding power supply provides an arc welding waveform through said contact tip to consume said two arc welding consumable electrodes to generate one arc and one weld puddle from said two arc welding electrodes;
- and
- a single wire feeder which drives said two arc welding consumable electrodes from said respective electrode sources to said contact tip;
- wherein said wire feeder comprises a single pair of feed rollers configured to drive said two arc welding electrodes to said contact tip, each roller having a single operable groove for driving said electrodes.
1 more element
Dependencies are inferred from the claim text.