Tandem gas metal arc welding system
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United States of America Patent
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May 19, 2015
Grant Date -
Mar 15, 2012
app pub date -
Sep 15, 2011
filing date -
Sep 15, 2010
priority date (Note) -
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Abstract
A gas metal arc welding system that includes first and second welding torch assemblies arranged to operate in tandem. The first welding torch assembly further includes a rotable torch body; a contact tip connected to one end of the rotatable torch body, wherein the contact tip further includes an angled passage formed therethrough; a consumable wire electrode passing through the rotating torch body and exiting the contact tip through the offset exit hole; and a source of shielding gas. The second welding torch assembly further includes a non-rotatable torch body; a contact tip connected to one end of the non-rotatable torch body; a consumable wire electrode passing through the non-rotatable torch body and exiting through the contact tip; and a source of shielding gas.
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