Back to results
US RE50,726 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.
Claims30
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 gun including a contact tip having a channel and an exit orifice;
- an arc welding power supply which provides an arc welding waveform through said contact tip for consuming two arc welding consumable electrodes having a circular cross-section;
- a wire feeding mechanism;
- and
- a liner disposed between a welding torch and said wire feeding mechanism,
- wherein said wire feeding mechanism provides said two arc welding consumable electrodes from respective electrode sources through said liner to said welding torch, wherein said two arc welding electrodes pass through said liner in a longitudinal orientation without intertwining or twisting with each other to deliver said two arc welding electrodes to said channel in said contact tip, and wherein said two arc welding electrodes pass through said channel without intertwining or twisting with each other and exit said contact tip.
3 more elements
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 through said contact tip for consuming two arc welding consumable electrodes having a circular cross-section;
- a wire feeding mechanism;
- and
- a liner disposed between a welding torch and said wire feeder,
- wherein said wire feeder drives said two arc welding consumable electrodes from respective electrode sources through said liner to said welding torch, wherein said two arc welding electrodes pass through said liner in a longitudinal orientation without intertwining or twisting with each other to deliver said two arc welding electrodes to said channel in said contact tip, and wherein said two arc welding electrodes pass through said channel without intertwining or twisting with each other and exit said contact tip,
- wherein said wire feeding mechanism comprises a single pair of feed rollers configured to drive said two arc welding electrodes through said liner, said feed rollers being designed for a single wire feeding operation;
- and
- wherein said liner is sized to allow for said two arc welding electrodes to pass therethrough to said welding torch.
6 more elements
Dependencies are inferred from the claim text.