Gas delivery means for cutting with laser radiation

Details Gas delivery means for cutting with laser radiation Gas delivery means for cutting with laser radiation

1975-05-02

1977-03-01

Grimley, Arthur T.

Electric heating

Metal heating

By arc

B23K 2700

Patent

active

040103455

ABSTRACT:
Gas delivery means for providing a flow of gas to the kerf in a workpiece which is being cut by a beam of laser radiation is disclosed. The distribution means consists of a thin wafer which is placed in the path of the cutting beam adjacent to the workpiece and a stream of gas directed along the axis of laser propagation blows the kerf clean. An upper gas port and a lower gas port allow the laser radiation to pass through the wafer without any transmissive optics. Use of the gas delivery means with various gases at high pressure and with laser beams at power levels which were previously impractical are discussed.

REFERENCES:
patent: 2951143 (1960-08-01), Anderson et al.
patent: 3271556 (1966-09-01), Harris
patent: 3388235 (1968-06-01), Pinsley et al.
patent: 3597578 (1971-08-01), Sullivan et al.
patent: 3604890 (1971-09-01), Mullaney et al.
patent: 3621198 (1971-11-01), Herbrich
patent: 3696230 (1972-10-01), Friedrich
patent: 3757078 (1973-09-01), Conti et al.

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