Back to results
US 9,000,329 B2Granted
Welding arc stabilization process
AssigneeIllinois Tool Works Inc.
InventorsJames Lee Uecker, Robert Raimund Davidson, Charles Lyle Kaufman, Michael Todd Klegin
Life of this patent
Estimating the term…
Abstract
A system and method for stabilizing a welding arc is disclosed. The method of initiating the arc includes the steps of defining a wire feed speed based on a user selected wire feed speed and then abruptly reducing the wire feed speed before the wire feed speed reaches a relatively stabilized speed for welding, thereby allowing a welding arc to initiate and propagate to a generally steady state.
Claims20
A method of generating a welding arc comprising the steps of:
- initiating a wire feed at a run-in wire feed speed for a weld operation;
- temporarily reducing wire feed speed to a second wire feed speed less than a user selected speed for a period of time during the weld operation based on detection of arc initialization;
- and
- adjusting wire feed speed to the user selected speed.
1 more element
A welding system comprising:
- a power source configured to generate a power signal suitable for welding;
- a wire feeder connected to the power source and configured to deliver a consumable wire electrode to a weld at a wire feed speed;
- and
- a controller connected to the wire feeder and configured to:
- define the wire feed speed to a run-in wire feed speed;
- reduce the wire feed speed to a second wire feed speed less than a user selected wire feed speed before weld stabilization;
- and
- automatically adjust the wire feed speed to the user selected wire feed speed after a predetermined duration of time after weld stabilization.
5 more elements
A welding system comprising:
- a power source configured to generate a power signal suitable for welding-type applications;
- a wire feeder constructed to deliver a filler material to a weld;
- and
- means for controlling a filler material delivery rate that establishes delivery of the filler material at a first rate, temporarily reduces the delivery rate to a level less than a user selected level without reversing a delivery direction based on welding arc initialization prior to arc stabilization, and establishes delivery of the filler material at the user selected level after arc stabilization.
1 more element
Dependencies are inferred from the claim text.