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US 10,556,289 B2Granted
Welding type power supply for TIG starts
AssigneeIllinois Tool Works Inc.
InventorsQuinn W. Schartner, Bernard J. Vogel, Andrew D. Nelson
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Abstract
A method and apparatus for TIG welding and starting a TIG welding process includes limiting the pulse width of a power circuit when a TIG start is being performed, and monitoring for the creation of a welding arc. After the welding arc has been detected the limiting of the pulse width is ended.
Claims9
A method of starting a TIG welding process, comprising:
- limiting the pulse width of a power circuit to be less than a desired magnitude when a TIG start is being performed;
- monitoring for the creation of a welding arc;
- and
- ending limiting the pulse width after the welding arc has been detected.
1 more element
Dependencies are inferred from the claim text.