Electric heating – Metal heating – By arc
Patent
1983-05-26
1985-11-05
Albritton, C. L.
Electric heating
Metal heating
By arc
219121EM, 219121LA, 219121PT, 2504923, B23K 1500, B23K 2600
Patent
active
045516065
ABSTRACT:
A method of and apparatus for controlling beamed energy radiation, e.g. of electron beams, onto a workpiece making use of a beam gun for producing a series of successive, time-spaced groups of pulsed energy beams. A power supply for the beam gun is constructed to produce a series of successive, time-spaced groups of discrete, time-spaced electrical pulses to produce the series of the successive, time-spaced groups of the pulsed energy beams. A highly precise, subtle control of the energy flow of the beamed radiation onto the workpiece is achieved in this manner by controlling the time duration .tau.on and the time interval .tau.off of the electrical pulses, the time duration Ton and the time interval Toff of the groups and the number n of the electrical pulses in each of the groups.
REFERENCES:
patent: 3875366 (1975-04-01), Von Walter
patent: 3909663 (1975-09-01), Thomas et al.
patent: 4045707 (1977-08-01), Gernot et al.
patent: 4087672 (1978-05-01), Yi
patent: 4219720 (1980-08-01), Moench
patent: 4314182 (1982-02-01), Thomas et al.
Lyman et al., Metals Handbook, "Welding & Brazing", 8th Ed., vol. 6, 2nd Printing 1974, pp. 547-549.
Albritton C. L.
Inoue-Japax Research Incorporated
Keve Alfred S.
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