Title:
METHOD AND APPARATUS FOR MAKING GROOVE IN ROTOR
Document Type and Number:
Japanese Patent JP3300732
Kind Code:
B2
Abstract:
PURPOSE: To prevent the eddy current loss reduction effect from being suppressed when grooves are made in the outer circumferential surface of a rotor by making grooves having accurate profile uniformly.
CONSTITUTION: A groove is made on a rotor by means of pressers 5a, 5b for supporting a rotor 2 at the opposite ends of the rotary shaft, a roll dies 6 for making a groove in the outer circumference of field cores 2a, 2b of the rotor, and a presser dies 70 having a groove matching a groove 2e being made by means of the roll dies 6.
Inventors:
Yoshiyuki Nobuyuki
Masatoshi Tajima
Masatoshi Tajima
Application Number:
JP31002594A
Publication Date:
July 08, 2002
Filing Date:
November 17, 1994
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
B21H7/18; H02K1/24; H02K15/02; H02K19/22; (IPC1-7): H02K15/02; H02K19/22
Domestic Patent References:
| JP5344667A | ||||
| JP629735A | ||||
| JP5184088A |
Attorney, Agent or Firm:
Keigo Murakami (4 outside)
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