Method of manufacturing rare earth permanent magnet rotor

Details Method of manufacturing rare earth permanent magnet rotor Method of manufacturing rare earth permanent magnet rotor

1975-06-16

1976-09-14

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29418, 148108, 310 42, 310156, H02K 1502

Patent

active

039798216

ABSTRACT:
A rotor containing rare earth magnet material which can be assembled, machined and then magnetized. A stack of laminations is built up, pieces of virgin rare earth magnet material are inserted in the slots provided therefor in the laminations, the laminations with the rare earth magnet material are cast with aluminum, the cast rotor is machined and the rare earth magnet material is then magnetized. The strength of the rare earth magnets in the rotor may be adjusted after magnetization thereof.

REFERENCES:
patent: 2696567 (1954-12-01), Madle
patent: 3628239 (1971-12-01), Hunt et al.
patent: 3802935 (1974-04-01), Martin et al.
patent: 3836802 (1974-09-01), Parker

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