System and method for preventing stub-outs in GTAW
AssigneeLiburdi Engineering Limited
InventorDale Osmanson
Life of this patent
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Abstract
A system and method for welding. In some embodiments, the system includes a tungsten electrode, an electrode position actuator, and a processing circuit. The processing circuit may be configured to detect contact between the tungsten electrode and a weld puddle, and, in response to detecting contact between the tungsten electrode and the weld puddle, to control the electrode position actuator to move the tungsten electrode out of contact with the weld puddle.
Claims16
A method for welding with a gas tungsten arc welding system, the method comprising:
- detecting contact between a tungsten electrode, of the gas tungsten arc welding system, and a weld puddle;
- in response to detecting contact between the tungsten electrode and the weld puddle, controlling an electrode position actuator, of the gas tungsten arc welding system, to move the tungsten electrode out of contact with the weld puddle;
- and
- maintaining a current through the tungsten electrode, after detecting contact between the tungsten electrode and the weld puddle.
A method for welding with a gas tungsten arc welding system, the method comprising:
- detecting contact between a tungsten electrode, of the gas tungsten arc welding system, and a weld puddle;
- in response to detecting contact between the tungsten electrode and the weld puddle, controlling an electrode position actuator, of the gas tungsten arc welding system, to move the tungsten electrode out of contact with the weld puddle;
- and
- operating, after moving the tungsten electrode out of contact with the weld puddle, with an arc voltage greater than before the contact between the tungsten electrode and the weld puddle.
Dependencies are inferred from the claim text.