Electron beam welding method and apparatus therefor

Details Electron beam welding method and apparatus therefor Electron beam welding method and apparatus therefor

1979-06-15

1981-06-02

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

219121EC, 219121EL, 219121ET, 21913743, B23K 1500

Patent

active

042713480

ABSTRACT:
An electron beam welding apparatus is provided with a magnetic shielding pipe for preventing electron beams emitted from being deflected by stray magnetic fields, and a removing device for removing metal deposit accumulated on a tip portion of the magnetic shielding pipe, which tip portion faces to a weld formed by welding of materials to be welded. The removing device is provided with at least a pair of shutters which move along a tip face of the tip portion to prevent the metal deposit from accumulating on the tip portion. The pair of shutters provides in their central portion a hole for passing electron beams therethrough when they are closed so that welding can continue irrespectively of the movement of the shutters.

REFERENCES:
patent: 2833913 (1958-05-01), Bernard
patent: 2938994 (1960-05-01), Van Der Willigen
patent: 3175073 (1965-03-01), Niedzielski et al.
patent: 3284608 (1966-11-01), McDonald
patent: 3393289 (1968-07-01), Duhamel et al.
patent: 3585351 (1971-06-01), Hinrichs
patent: 3589351 (1971-06-01), Shoupp et al.
patent: 3597576 (1971-08-01), Bernard et al.

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