Narrow weld-groove welding process and apparatus therefor

Details Narrow weld-groove welding process and apparatus therefor Narrow weld-groove welding process and apparatus therefor

1978-02-22

1981-03-03

Goldberg, E. A.

Electric heating

Metal heating

By arc

219136, 219137R, 2191378, B23K 900

Patent

active

042543223

ABSTRACT:
A narrow weld-groove welding process, in which a bare welding wire is fed into a weld groove defined between the opposed surfaces of two pieces of metals for producing a metal arc therein for welding. In this process, a welding wire is subjected to a plastic deformation of a wave form, before being fed into a nozzle hole provided in a contact tip, and then the wire is fed into a nozzle hole, while maintaining elasticity tending to cause waving, whereby the tip of a welding wire being fed through a nozzle exit is automatically waved between the opposed surfaces of metals to be joined, with the tip of wire being alternately faced in the opposite directions, in response to the weaving motion thereof, with the feeding of the welding wire and progress of welding. In addition, the apparatus for use in a narrow weld-groove welding process is also disclosed.

REFERENCES:
patent: 3328556 (1967-06-01), Nelson
patent: 3576966 (1971-05-01), Sullivan
patent: 3746833 (1973-07-01), Ujiie
patent: 3826888 (1974-07-01), Garfield
patent: 3838243 (1974-09-01), Inagaki
patent: 3992603 (1976-11-01), Reynolds
patent: 4090057 (1978-05-01), Okada

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