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US 12,343,824 B2Granted
System and method for short arc welding
AssigneeIllinois Tool Works Inc.
InventorsJustin M. Durik, Robert R. Davidson
Life of this patent
Estimating the term…
Abstract
An example method of controlling a short circuit welding process includes: setting a heat target for at least a portion of a short state; monitoring output parameters during the short state; calculating a measured heat from the measured output parameters; comparing the measured heat and the heat target; adjusting a pinch current in a subsequent short state in response to at least one comparing from at least one previous short state; and repeating these actions.
Claims15
A method of controlling a short circuit welding process, comprising:
- setting a heat target for at least a portion of a short state;
- monitoring output parameters during the short state;
- calculating a measured heat from the measured output parameters;
- comparing the measured heat and the heat target;
- adjusting, via a controller, a pinch current in a subsequent short state in response to at least one comparing from at least one previous short state;
- and
- repeating these actions.
4 more elements
A system for short circuit welding process, comprising:
- a power circuit, disposed to receive a power signal and provide a welding output, and having a control input;
- a feedback circuit, connected to the power circuit and having a feedback output responsive to at least output current and output voltage during the short state;
- a controller, having control outputs connected to the control input, and having a feedback input connected to the feedback output, wherein the controller includes a short state module configured to provide a plurality of short state parameters, and an arc state module configured to provide a plurality of arc state parameters,
- wherein the short state module includes a measured heat module configured to receive as an input the feedback output and configured to provide a measured heat output of at least a portion of the short state;
- wherein the short state module includes a comparison module configured to compare a desired heat target and a function of the measured heat output;
- and
- wherein the short state module is configured to provide the plurality of short state parameters of a subsequent short state, including adjusting a pinch current in the subsequent short state in response to the output of the comparison module from at least one past short state.
4 more elements
Dependencies are inferred from the claim text.