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US 10,500,671 B2Granted
System and method for arc welding and wire manipulation control
AssigneeLincoln Global, Inc.
InventorJudah Henry
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention are directed to systems and methods of controlling wire feeding in a welding operation, where the wire feeding has a plurality of positive and negative pulses. Embodiments determine an average wire feed speed and compare the average to a desired wire feed speed and then change a parameter of the wire feed pulses to achieve a desired wire feed speed.
Claims20
A welding system, comprising:
- a wire feeding mechanism having a wire drive mechanism which advances a welding wire and retracts said welding wire during a welding operation, where said advancement of said welding wire has a plurality of positive wire feed speed pulses and said retraction of said welding wire has a plurality of negative wire feed speed pulses,
- a wire feed speed detection circuit which detects a wire feed speed of said welding wire during said welding operation, and
- a controller coupled to said wire feeding mechanism and said wire feed speed detection circuit which determines an average wire feed speed for said welding operation based on said detected wire feed speed from said wire feed speed detection circuit, and where said controller compares said average wire feed speed with a desired average wire feed speed value,
- wherein each of said positive wire feed speed pulses have a first pulse parameter and each of said negative wire feed speed pulses have a second pulse parameter and said controller changes at least one of said first and second pulse parameters based on a comparison of said determined average wire feed speed and said desired average wire feed speed value, and
- wherein said welding operation has each of a welding arc voltage and a welding current and said first pulse parameter and said second pulse parameter are not directly regulated based on the welding arc voltage or the welding current, and
- wherein the welding arc voltage and the welding current are not directly controlled based on the first pulse parameter or the second pulse parameter.
3 more elements
A welding system, comprising:
- a wire feeding mechanism having a wire drive mechanism which advances a welding wire and retracts said welding wire during a welding operation, where said advancement of said welding wire has a plurality of positive wire feed speed pulses and said retraction of said welding wire has a plurality of negative wire feed speed pulses,
- a wire feed speed detection circuit which detects a wire feed speed of said welding wire during said welding operation, and
- a controller coupled to said wire feeding mechanism and said wire feed speed detection circuit which determines an average deposition rate for said welding operation based on said detected wire feed speed from said wire feed speed detection circuit, and where said controller compares said determined average deposition rate with a desired average deposition rate,
- wherein each of said positive wire feed speed pulses have a first pulse parameter and each of said negative wire feed speed pulses have a second pulse parameter and said controller changes at least one of said first pulse parameter and said second pulse parameter based on a comparison of said determined average deposition rate and said desired average deposition rate, and
- wherein said welding operation has each of a welding arc voltage and a welding current and said first pulse parameter and said second pulse parameter are not directly regulated based on the welding arc voltage or the welding current, and
- wherein the welding arc voltage and the welding current are not directly controlled based on the first pulse parameter or the second pulse parameter.
3 more elements
A method of welding, comprising:
- advancing and retracting a welding wire during a welding operation, where said advancing of said welding wire uses a plurality of positive wire feed speed pulses and said retracting of said welding wire uses a plurality of negative wire feed speed pulses, where each of said positive wire feed speed pulses have a first pulse parameter and each of said negative wire feed speed pulses have a second pulse parameter;
- detecting a wire feed speed of said welding wire during said welding operation;
- determining an average wire feed speed for said welding operation based on said detected wire feed speed;
- comparing said determined average wire feed speed with a desired average wire feed speed value,
- changing at least one of said first pulse parameter and said second pulse parameter based on said comparison of said determined average wire feed speed and said desired average wire feed speed value,
- wherein said welding operation has each of a welding arc voltage and a welding current and said first pulse parameter and said second pulse parameter are not directly regulated based on the welding arc voltage or the welding current, and
- wherein the welding arc voltage and the welding current are not directly controlled based on the first pulse parameter or the second pulse parameter.
4 more elements
Dependencies are inferred from the claim text.