Method of manufacturing stator core

Details Method of manufacturing stator core Method of manufacturing stator core

1978-07-10

1980-05-13

Combs, Ervin M.

Metal deforming

By deflecting successively-presented portions of work during...

To form helical coil or tube

29596, 29605, 72142, H02K 1500, B21D 1106

Patent

active

042021960

ABSTRACT:
A stator core including a central cylindrical opening defined by a plurality of teeth consecutive through a circumferential continuous portion is prepared by winding a magnetic strip having a corresponding shape into a spiral. A forming cylindrical rod having a diameter larger than the inside diameter of the core is forced into that opening, and then a pressure is axially applied to the core to compress it to level the beginning and last edges of the strip. The rod is removed from the core and the pressure is released to complete the stator core having a predetermined inside diameter.

REFERENCES:
patent: 3062267 (1962-11-01), Hart et al.
patent: 3152629 (1964-10-01), Rediger
patent: 3206964 (1965-09-01), Hart et al.
patent: 3283399 (1966-11-01), Hart et al.
patent: 3842493 (1974-10-01), Ochuchi et al.
patent: 3958325 (1976-05-01), Rick et al.
patent: 4079512 (1978-03-01), Lakes
patent: 4116033 (1978-09-01), Iwaki et al.

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