Methods in the laser cutting of metallic workpieces

Details Methods in the laser cutting of metallic workpieces Methods in the laser cutting of metallic workpieces

1986-06-10

1988-02-09

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LN, 219121FS, B23K 2600

Patent

active

047242973

ABSTRACT:
In laser cutting of metallic workpieces, for avoiding burr and slag formation in the kerf, providing good weldability and high cutting speed in the workpiece, use is made of a cutting gas which comprises at least one active gas, such as for example, oxygen. The cutting gas is mixed with at least one substantially inert gas, such as for example, He, N.sub.2, Ar, of CO.sub.2, a gas or gas mixture which has but slight reactive tendencies with the material in the workpiece, the oxygen concentration lying in the range of about 30% to about 90% of the total cutting gas content.

REFERENCES:
patent: 4467171 (1984-08-01), Ramos
M. J. Adams, "Introduction to Gas Jet Laser Cutting", Metal Construction and British Welding Journal, Jan. 1970, pp. 1-7.

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