Electric heating – Metal heating – By arc
Patent
1980-01-17
1981-09-29
Rubinson, Gene Z.
Electric heating
Metal heating
By arc
219137R, 219 74, B23K 916
Patent
active
042924960
ABSTRACT:
A method is provided of vertical gas metal-arc two-sided welding of thick plate in a single welding pass on each surface of the plate. The method includes providing a first weld groove on one surface of the plate into which a weld bead is deposited in a single pass. Thereafter, a second weld groove is formed on the opposite surface of the plates by removing base plate material along the joining line to a depth extending at least to the first weld bead penetrating from the welding pass in the first weld groove. The plates are further joined together by depositing a weld bead in a single pass along the second welding groove. The welding is provided by impressing a direct electric current of from 290 to 420 amperes between an electrode and the plates shielded primarily by argon gas.
A metal article and a welded joint are also provided.
REFERENCES:
patent: 2916600 (1959-12-01), Tichler
patent: 3307014 (1967-02-01), Toyoaki Bada et al.
patent: 3351734 (1967-11-01), Masaysu Arikawa et al.
patent: 3748429 (1973-07-01), Agusa et al.
patent: 3825712 (1974-07-01), Gibbs
patent: 4038514 (1977-07-01), Ashton
Metals Handbook, 8th Edition, vol. 6, "Welding and Brazing" American Society For Metals, Oh., 1971, TA 472 A3, p. 148.
Hoy Malcolm G.
Reichelt Walter R.
Aluminum Company of America
George Keith E.
Rubinson Gene Z.
Viccaro Patrick J.
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