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US 2015/0306691 A1Published application
Tig welding system
AssigneeLincoln Global, Inc.
InventorsFerdinand M. Naber, Theresa M. Spear
Life of this patent
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Abstract
A TIG welding system is provided including a power source having a controller in communication therewith, the controller having a memory storing at least one waveform and associated with a welding electrode composition (color) in combination with a welding electrode diameter (detected or input).
Claims20
A TIG welding system comprising:
- a power source having a controller in communication therewith, the controller having a memory storing at least one waveform;
- a welding torch including an electrode electrically connected to the controller;
- an arc initiation input in communication with the controller, said arc initiation input comprising:
- an electrode color;
- and
- an electrode diameter;
- wherein in the controller is programmed to select one of the at least one waveform based on the user-selected electrode color and electrode diameter and apply power from the power source to the electrode according to the selected at least one waveform;
- wherein the at least one waveform includes an arc initiation stage including at least one pulse, wherein during the arc initiation stage, the controller controls at least two of the parameters of an arc starting current, an arc strike time and an arc slope time, and wherein upon attaining a steady state at the combination of electrode color and electrode diameter, the controller is configured to permit user control of the arc current or voltage applied to the electrode.
5 more elements
A method of controlling a TIG welder comprising:
- receiving an electrode color in combination with either a detected electrode diameter or an input of the electrode diameter;
- selecting a waveform from a memory based on the combination, the waveform including an arc initiation stage and a sequencing stage;
- energizing an electrode according to the waveform;
- preventing user control of energy to the electrode during the arc initiation stage.
1 more element
Dependencies are inferred from the claim text.