Laser welding method of steel plate and steel ingot

Details Laser welding method of steel plate and steel ingot Laser welding method of steel plate and steel ingot

1989-11-16

1990-08-14

Albritton, C. L.

Electric heating

Metal heating

By arc

21912163, B23K 2600

Patent

active

049489399

ABSTRACT:
A laser welding method of weldment, for the steel plates less than 1 mm thick, to make several through holes whose diameter is less than 1 mm, to fix the first weldment on the second weldment, and to irradiate laser beam of Nd-YAG laser generator through condensing lens and holes on the surface of the second weldment to be welded, on the other hand, for steel ingots more than 1 mm thick, to make narrow slit penetrating the first weldment, to fix the first weldment on the second weldment, and to irradiate CO.sub.2 CW laser beam of CO.sub.2 laser generator through condensing lens and the second weldment to be welded.

REFERENCES:
patent: 4341942 (1982-07-01), Chaudhari et al.
patent: 4424435 (1984-01-01), Barnes, Jr.
patent: 4461946 (1984-07-01), Kratschmer
patent: 4508495 (1985-04-01), Monden et al.
patent: 4685202 (1987-08-01), Booth et al.

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