US Patent Number
5990446
Publication Date
11-23-1999
Abstract
An improved method of arc welding uses a single power supply connected to opposed welding torches placed on both sides of a workpiece. Each torch is connected to a different polarity lead of the power supply and forms a separate arc with the workpiece. When a current is supplied to the first torch, it is guided from the first electrode, through the first arc, the workpiece, the second arc, and to the electrode of the second torch. This guiding function improves the penetration, concentration, as well as the directional stability of the arc. This permits the effective and efficient welding of relatively thick workpieces using existing equipment at low current levels.
Assignees
University of Kentucky Research Foundation, Lexington, Ky.
Application Number
09/049,191
Filing Date
03/27/1998
Recommended Citation
Zhang, Yuming and Zhang, Shaobin, "Method of Arc Welding Using Dual Serial Opposed Torches" (1999). Electrical and Computer Engineering Faculty Patents. 14.
https://uknowledge.uky.edu/ece_patents/14
