DC electrode negative rotating arc welding method and system

摘要

A welding operation is performed by moving or rotating an arc in a welding torch, and feeding a metal cored wire through the torch in a direct current, electrode negative welding process. The electrode may include one or more arc stabilizers. The welding process may be pulsed or non-pulsed. Moreover, the process may be used with a number of different base metals intended to be welded, such as thin plate, galvanized metals, painted metals, coated metals, and so forth.

主权项

1. A welding method comprising:
establishing an arc between a metal cored welding electrode and a workpiece in a direct current, electrode negative welding polarity, the metal cored welding electrode comprising a sheath and a core; feeding the electrode from a welding torch while cyclically moving the electrode in a desired pattern by a motion control assembly within the welding torch to maintain an arc between at least the sheath and the workpiece; and advancing the welding torch or the workpiece to establish a weld bead.