Welding apparatus

Details Welding apparatus Welding apparatus

1977-04-29

1979-07-24

Goldberg, E. A.

Electric heating

Metal heating

By arc

21912512, 219 7616, 219 75, 21913032, B23K 912

Patent

active

041623894

ABSTRACT:
In a welding apparatus for overlaying on a base metal, a reverse polarity soft plasma arc is formed between an electrode and the base metal and a welding rod is fed into the arc to weld the base metal by melting the welding rod and the feeding speed of the welding rod is controlled corresponding to the arc current to form a bead having low penetration.
The electrode is oscillated and an active gas such as CO.sub.2 or O.sub.2 is incorporated in a shield gas at a rate controlled corresponding to the oscillation of the electrode.

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patent: 4023006 (1977-05-01), West et al.

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