Method of multi-pass narrow groove arc welding

Details Method of multi-pass narrow groove arc welding Method of multi-pass narrow groove arc welding

1977-03-10

1980-02-05

Goldberg, E. A.

Electric heating

Metal heating

By arc

219 74, 219137R, 2191377, B23K 900

Patent

active

041874102

ABSTRACT:
A method of multi-pass arc welding with a consumable electrode in a protective atmosphere for welding heavy-gauge metal with narrow grooving, wherein, according to the invention the initial electrode extension is adjusted to be greater than the depth of grooving of welded joint, a current supply conductor which supports the consumable electrode passing therethrough is placed in a permanent position above the welded joint, and the welding is conducted with the length of extension of consumable electrode decreasing upon each pass, the voltage applied to the current supply conductor, rate of feed of the consumable electrode and welding speed being reduced with the decrease in the length of extension of the consumable electrode.

REFERENCES:
patent: 2868951 (1959-01-01), Shrubsall
patent: 3325626 (1967-06-01), Sargent
patent: 3328556 (1967-06-01), Nelson et al.
patent: 3350539 (1967-10-01), Manz et al.
patent: 3509314 (1970-04-01), Dreytag
patent: 3594538 (1971-07-01), Broodman
patent: 3649805 (1972-03-01), Rohrberg

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