Electric heating – Metal heating – For bonding with pressure
Patent
1975-12-08
1977-09-13
Truhe, J. V.
Electric heating
Metal heating
For bonding with pressure
219 85F, 219 92, 219119, B23K 1118
Patent
active
040484637
ABSTRACT:
A method of welding aluminum to aluminum by thermal resistance welding, providing good electrical and mechanical characteristics. The method uses special electrodes for thermal heat that are hard and have a high electrical resistance, such as molybdenum or tungsten alloy and also relies on the aluminum oxide coating on the aluminum to provide the desired resistance heating of the aluminum to cause welding of the aluminum material. The machine disclosed provides a means for securing aluminum leads to the start and finish end of an aluminum winding automatically and simultaneously.
REFERENCES:
patent: 1176614 (1916-03-01), Stanley
patent: 1770540 (1930-07-01), Lunn
patent: 2021477 (1935-11-01), Bohn
patent: 3141951 (1964-07-01), Tsukada et al.
patent: 3777109 (1973-12-01), Chapman
Metals Handbook, 8th Edition, vol. 6, Welding and Brazing, American Society for Metals, Metals Park, Ohio, Copyright 1971, p. 466.
Bennett Moreland P.
Bowers William L.
Doyle Francis X.
Freedman William
General Electric Company
Herkamp N. D.
Truhe J. V.
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