Metal fusion bonding – Including means to provide heat by friction between...
Patent
1984-11-12
1987-12-29
Godici, Nicholas P.
Metal fusion bonding
Including means to provide heat by friction between...
228102, 228112, 318115, B23K 2012, B23K 2700
Patent
active
047155230
ABSTRACT:
An electromagnetic power drive for a friction welding machine, comprising a magnetic core installed immovably, which carries a power coil connected to a voltage regulator made as a switch and at least one pickup coil connected to an integrator producing voltage proportional to the actual value of the magnetic flux during friction welding, which is connected to a comparison means comprising two comparators, a driving input of one of said comparators receives voltage proportional to the assigned value of the magnetic flux during friction welding, the driving input of the other comparator receives voltage proportional to the other assigned value of the magnetic flux, and a control signal generator having a hysteresis-loop output characteristic, which is connected to the comparators, the output of said generator being the output of the comparison means electrically coupled with the voltage regulator.
REFERENCES:
patent: 3623214 (1971-11-01), Sciaky et al.
patent: 4067490 (1978-01-01), Jones et al.
patent: 4234831 (1980-11-01), Kemmer et al.
patent: 4286181 (1981-08-01), Guzman et al.
Chernenko Ivan A.
Dyshlenko Alexandr T.
Lebedev Vladimir K.
Litvin Leonid V.
Tishura Vladimir I.
Godici Nicholas P.
Heinrich Samuel M.
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