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Dual wire welding torch and method

United States Patent

7,525,067
April 28, 2009
View the Complete Patent at the US Patent & Trademark Office
A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.
Diez; Fernando Martinez (Peoria, IL), Stump; Kevin S. (Sherman, IL), Ludewig; Howard W. (Groveland, IL), Kilty; Alan L. (Peoria, IL), Robinson; Matthew M. (Peoria, IL), Egland; Keith M. (Peoria, IL)
Caterpillar Inc. (Peoria, IL)
11/ 449,054
June 8, 2006
This invention was made with Government support under DOE Contract No. DE-FC36-031D14462 awarded by the U.S. Department of Energy. The Government has certain rights to this invention.