HYBRID WELDING METHOD AND WELDING TORCH FOR HYBRID WELDING
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United States of America Patent
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Issued Date -
Nov 14, 2013
app pub date -
Jul 28, 2011
filing date -
Aug 5, 2010
priority date (Note) -
Abandoned
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Abstract
An object of the present invention is to provide a hybrid welding method which can improve the stability of the arc, the welding speed, and welding efficiency, and the present invention provides a hybrid welding method in which a TIG arc is generated on the front side in the welding direction, and a MIG arc is generated on the back side in the welding direction in order to weld a welding base material, wherein electric current for the TIG welding is larger than electric current for the MIG welding; and an absolute value of the interval between an intersection of a center axis of a TIG electrode and a surface of the welding base material and an intersection of a center axis of a MIG electrode and the surface of the welding base material is 4 mm or less.
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