MANUFACTURE OF ROTOR CORE OF AC GENERATOR

PURPOSE:To manufacture a rotor core having sufficient accuracy with a low cost by hot forging a material to form the general shape, gradually cooling it, then cutting and cold forging it. CONSTITUTION:A material 8 is hot forged to form the general shape of a rotor core which is formed in the prescri...

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Bibliographische Detailangaben
Hauptverfasser:	KATOU MASA, TANIGUCHI MASARU, SAWAHATA KAZUO
Format:	Patent
Sprache:	eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To manufacture a rotor core having sufficient accuracy with a low cost by hot forging a material to form the general shape, gradually cooling it, then cutting and cold forging it. CONSTITUTION:A material 8 is hot forged to form the general shape of a rotor core which is formed in the prescribed sizes and shapes of a boss portion 2a, a coupling plate 3a and a pawl 4a. Then, the forging bur 9 of the general shape is removed, the core is gradually cooled, and the inner and outer diameters and coupling plate portion 3a are regularly pressurized by cold forging. Further, to form the general shape to the prescribed volume, the roughly finished state is cut. Eventually, the cut roughly finished shape is correctly adjusted by cold forging to precisely form the rotor core of the prescribed size and shape.