Electric heating – Metal heating – By arc
Patent
1979-11-09
1982-04-27
Truhe, J. V.
Electric heating
Metal heating
By arc
219121LS, 219121LX, 219121LY, 219121LC, 219121LT, B23K 2604
Patent
active
043272754
ABSTRACT:
A method of assembling an electron gun, which method permits welding of a number of welding points to be effected simply, in a short period of time and without causing mechanical distortion in welded parts and comprises the steps of; causing relative movement of electron gun parts to be welded together and the axes of a laser beam for welding and a light beam for positioning a welding point, these axes being in a predetermined positional relation to each other; causing the light beam for positioning to be incident on a part to be welded; detecting reflected light obtained when the light beam for positioning is reflected by a portion of the aformentioned part to be welded corresponding to a welding point; stopping the aforementioned relative movement according to the detection of the aforementioned reflected light; and exposing the aforementioned welding point to the laser beam for welding according to the detection of the reflected light so as to effect welding of parts to each other.
REFERENCES:
patent: 3766355 (1973-10-01), Kottkamp
patent: 3902036 (1975-08-01), Zaleckas
patent: 3943324 (1976-03-01), Haggerty
patent: 4012213 (1977-03-01), Haggerty et al.
patent: 4088890 (1978-05-01), Waters
patent: 4125755 (1978-11-01), Plamquist
Laser Focus; vol. 12, No. 3, pp. 33-36, Mar. 1976; "Automated Welding of Minute Parts" by Aeschlimann et al.
Asaba Shuuji
Nemoto Minoru
Ono Akira
Ushimi Kenji
George Keith E.
Tokyo Shibaura Denki Kabushiki Kaisha
Truhe J. V.
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