BigPatents India

A flexible contact tube adapted to be accommodated with any conventional Gas Metal Arc (GMA) welding torch adapted for arc URWDWLRQVDLGWXEHRIFRPSULVLQJVORWVRIOHQJWKIGWRIGDWspacing of d/3 to d12.5 (where d is the inside diameter of said contact tube). A device for arc rotation comprising the flexible tube adapted to be accommodated with any conventional Gas Metal Arc (GMA) welding torch; the torch body; contact tip; means for attachment of the said tube between the torch body and contact tip; means for providing lateral motion to the contact tip and means for moving the contact tube. The said device for arc rotation yields improved weld bead geometry and penetration characteristics. (FIG.2)