Method of welding galvanized steel

Details Method of welding galvanized steel Method of welding galvanized steel

1974-10-04

1976-07-13

Truhe, J. V.

Electric heating

Metal heating

By arc

29458, 219137R, B23K 2600

Patent

active

039696049

ABSTRACT:
A method of welding galvanized steel with a high energy density beam is disclosed. The high energy density can be created by an electron or laser beam with a power density of at least 4.times.10.sup.6 watts per square inch. A flux material, such as iron oxide, is disposed adjacent the welding zone, preferably by painting thereon, which is effective to form a compound with the zinc of the galvanized steel upon heating. The compound has a vapor pressure substantially the same or lower than the vapor pressure of the steel substrate so that disruption of the weld puddle is prevented to insure that all of the weld puddle will be available to properly close the weld void.

REFERENCES:
patent: 2282175 (1942-05-01), Emerson
patent: 2897588 (1959-08-01), Chapman
patent: 3617396 (1971-11-01), Duff et al.
patent: 3649806 (1972-03-01), Konig
patent: 3679862 (1972-07-01), Stoll et al.
E. V. Locke et al., "Deep Penetration Welding With High-Power CO.sub.2 Lasers," IEEE Journal of Quantum Electronics, vol. QE-8, No. 2, 2-1972.

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