Electric heating – Metal heating – By arc
Patent
1974-12-12
1976-03-30
Truhe, J. V.
Electric heating
Metal heating
By arc
219121P, B23K 2700
Patent
active
039476545
ABSTRACT:
A laser-radio frequency system for generating a high temperature beam and for directing and modulating the combined beam at a workpiece or target. The system includes a hollow circular electrode mounted within a circular nozzle and spaced apart from the nozzle to define an annular gap. A radio frequency generator having a hollow metal coil as its tank coil is connected to the nozzle and a pressurized inert gas is fed through the tank coil into the nozzle. When the generator is activated, a coherent R.F. electron stream is emitted from the electrode and the inert gas flows along the annular gap to sheath and focus the stream into an energy beam directed toward the workpiece. A laser generator provides a laser beam through the hollow portion of the electrode which is reflected and focused onto the workpiece; therefore an algebraic summation of both electromagnetic energies is obtained at the workpiece in the non-oxidizing atmosphere. The radio frequency tank coil may be connected to a source of powder for spraying a coating on the workpiece.
REFERENCES:
patent: 3309564 (1967-03-01), Poulsen
patent: 3324277 (1967-06-01), Herring, Jr.
patent: 3347698 (1967-10-01), Ingham, Jr.
patent: 3648015 (1972-03-01), Fairbairn
patent: 3719829 (1973-03-01), Vaill
patent: 3723246 (1973-03-01), Lubin
Peterson G. R.
Sirius Corporation
Truhe J. V.
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