Electric resistance welding of electric motor cage rotor assembl

Details Electric resistance welding of electric motor cage rotor assembl Electric resistance welding of electric motor cage rotor assembl

1996-04-17

1998-04-07

Nguyen, Matthew V.

Electric heating

Metal heating

For bonding with pressure

29598, B23K 1100, H02H 1502

Patent

active

057367078

ABSTRACT:
Electric resistance welding provides localized heating for simultaneous upset welding of the copper bars and copper end rings of an electric motor cage rotor assembly. Rapid application of an axial force completes the upset welds. The localized heating is in high current, low voltage pulses for which a homopolar welding generator is utilized.

REFERENCES:
patent: 4064410 (1977-12-01), Roach
patent: 4249098 (1981-02-01), Karlen et al.
patent: 4885494 (1989-12-01), Higashi
patent: 5265791 (1993-11-01), Nied et al.
patent: 5304877 (1994-04-01), Baek
patent: 5495133 (1996-02-01), Bawin et al.
"Homopolar Pulse Welding for Offshore Deep Water Pipelines", by P.W. Haase et al., 27th Annual Offshore Technology Conference, pp. 105-111, May 1-4, 1995.
"Welding and Billet Heating With Homopolar Generators", by J.B. Walters et al., Metal Progress, Apr. 1985.

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