Method for manufacturing a unit piece of a V pulley

A method for manufacturing a unit piece for a 'V' pulley of the type in which a pair of unit pieces of the same configuration are assembled in back-to-back relation to each other into a single complete pulley, said unit piece having a central flat portion and a circumferential 'V'...

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Bibliographische Detailangaben
Hauptverfasser:	KANAMARU, HISANOBU, TATSUMI, HIDEO, HIRAZUKA, TOMOYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS FORGE FURNACES FORGING GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HAMMERING HEATING LIGHTING MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A method for manufacturing a unit piece for a 'V' pulley of the type in which a pair of unit pieces of the same configuration are assembled in back-to-back relation to each other into a single complete pulley, said unit piece having a central flat portion and a circumferential 'V' groove forming portion continuous with the flat portion, characterized by the steps of preparing a forging stock of a disk form of which the outer diameter is equal to the outer diameter D1 of said pulley unit peice and the thickness is equal to the thickness T of the flat portion of said pulley unit piece; and cold-forging said forging stock for deforming an outer circumferential portion thereof so that the thickness of the portion is gradually reduced radially outwardly to define a cylindrical portion of height L as well as an outermost circumference of thickness T1 and n innermost circumference of thickness T2(T1