Electric heating – Metal heating – Of cylinders
Patent
1986-03-27
1988-03-29
Envall, Jr., Roy N.
Electric heating
Metal heating
Of cylinders
219 85, 219 1041, B23K 1302
Patent
active
047345527
ABSTRACT:
A method and apparatus is provided for first heating surfaces to be welded together by one or two induction coils placed therebetween and upon raising both surfaces to a forging temperature forcing said surfaces together with sufficient force to weld the surfaces together. The heating and upsetting steps occur when the surfaces are in a substantially inert atmosphere.
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Envall Jr. Roy N.
FMC Corporation
Kamp Ronald C.
Megley Richard B.
Moore Alan J.
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