Electron beam welder control

Details Electron beam welder control Electron beam welder control

1983-12-27

1985-12-24

Albritton, C. L.

Electric heating

Metal heating

By arc

219121EC, 219121EU, B23K 1500

Patent

active

045608547

ABSTRACT:
A control for an electron beam welder for maintaining the point of impact of an electron beam 16 on the intended weld line 6 between two weldments 2 and 4 and for monitoring or controlling the beam area wherein there is provided a strip of 8 and 10 material on each side of the weld line 6 emitting radiation predominantly of a specific wave length when impinged by the electromagnetic radiation produced by the electron beam 6, means 22 are provided for generating an output signal proportional to the difference in radiation emitted by the two strips of material 8 and 10 which is available for controlling the transverse positioning of the electron beam as required to maintain the point of impact along the intended weld line 6. Means 24 is provided for generating an output signal proportional to the sum of the radiation emitted by the two strips of material which is available for monitoring or controlling the area of the electron beam.

REFERENCES:
patent: 3743776 (1973-07-01), Corcelle et al.
patent: 4400609 (1983-08-01), Pastushenko et al.

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