Regulation of electron-beam welding generators

Details Regulation of electron-beam welding generators Regulation of electron-beam welding generators

1978-07-18

1980-11-25

Reynolds, B. A.

Electric heating

Metal heating

By arc

219121EC, 315307, B23K 1500, G05F 110

Patent

active

042360587

ABSTRACT:
A method of and apparatus for regulating an electron-beam welding generator of the kind having three electrodes viz: a cathode, a Wehnelt electrode and an anode. The method is characterized by a suitable combination of two methods of regulating an electron beam welding gun. One of these methods includes varying and regulating the very high voltage while maintaining the voltage applied to the Wehnelt electrode at the potential of the cathode (operation of the "diode" kind). The other method includes holding the very high voltage constant while regulating or programming the welding current by means of the voltage to the Wehnelt electrode (operation of the "triode" kind). The variations in and regulation of the very high voltage are controlled by an induction regulator associated with a thyristorized regulator.

REFERENCES:
patent: 3760279 (1973-09-01), Rudolph
patent: 3838313 (1974-09-01), Anderson
patent: 3875366 (1975-04-01), Von Walter
patent: 3999032 (1976-12-01), Mayer
patent: 4045707 (1977-08-01), Gernot et al.
Automatic Welding, vol. 22, No. 2, Feb. 1969, pp. 58-62, "A New 13.5 kW Electron Beam Welding Apparatus" by Nazarenko et al.

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