MANUFACTURING METHOD FOR LAMINATED CORE AND FORWARD METAL MOLD DEVICE

PROBLEM TO BE SOLVED: To improve the working precision of a connecting portion of each of a plurality of laminated core pieces to be split in collectively manufacturing the laminated core pieces making up a split laminated core. SOLUTION: A manufacturing method for the split laminated core 3 include...

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Bibliographic Details
Main Author KAGAWA YOSHITAKA
Format Patent
LanguageEnglish
Published 12.08.2010
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:PROBLEM TO BE SOLVED: To improve the working precision of a connecting portion of each of a plurality of laminated core pieces to be split in collectively manufacturing the laminated core pieces making up a split laminated core. SOLUTION: A manufacturing method for the split laminated core 3 includes a splitting process of splitting a connecting portion 4 of each of a plurality of stator core pieces 7 along a given split line 5, a process of punching out a split assist hole H whose periphery crosses one end 5a of the split line 5, and a process of punching out a slot S2 whose periphery crosses the other end 5b of the split line 5. Both punching processes are carried out at least before the splitting process. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20090017748