Electric heating – Metal heating – With forging or shaping
Patent
1977-05-02
1978-05-23
Truhe, J. V.
Electric heating
Metal heating
With forging or shaping
336 82, B21J 106
Patent
active
040912604
ABSTRACT:
Coil means between an annular casing electrode and a core casing electrode providing contact for high amplitude current conduction and flexibility during magnetic and structural loading in achieving substantially greater operational life in use with stress wave tooling.
REFERENCES:
patent: 2856577 (1958-10-01), Schmidt
patent: 3340489 (1967-09-01), Bastis et al.
patent: 3517364 (1970-06-01), Mastrjukov
patent: 3731370 (1973-05-01), Leftheris
patent: 3764944 (1973-10-01), Erven
patent: 4030057 (1977-06-01), Kohler et al.
Leftheris Basil P.
Varisco Angelo
Bouchard John H.
Geib Richard G.
Gill Mellor A.
Grumman Aerospace Corporation
Truhe J. V.
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