Method for manufacturing a stator core for an axial air-gap...

Details Method for manufacturing a stator core for an axial air-gap... Method for manufacturing a stator core for an axial air-gap...

2007-03-13

2011-10-25

Cazan, Livius R (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C310S216007, C310S216062

Reexamination Certificate

active

08042257

ABSTRACT:
There is provided a method for manufacturing a stator core for an axial air-gap electronic motor, in which core sheets are laminatedly fixed while being shifted with predetermined intervals. The method includes a step in which first side surfaces in the circumferential direction (first slot surfaces25) of the first to nth (n is a positive integer) core sheets are blanked out of a mother sheet60by moving first blanking punches360with predetermined intervals via a first control means700; and a second blanking step in which second side surfaces in the circumferential direction (second slot surfaces26) of the first to nth (n is a positive integer) core sheets are blanked in succession by moving a second blanking punch460with predetermined intervals via a second control means700.

REFERENCES:
patent: 2495218 (1950-01-01), Aske
patent: 2557249 (1951-06-01), Aske
patent: 5604971 (1997-02-01), Steiner

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