MANUFACTURE OF ROLLER

PURPOSE: To equalize thickness of a core bar and suppress generation of thermal marbles by forming an aluminum alloy plate in a tubular form, welding a tube connection part, and performing cold-drawing to form the core bar of a roller. CONSTITUTION: In order to manufacture a roller used suitably as...

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Bibliographische Detailangaben
1. Verfasser:	YASUNAGA TAKAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BEARINGS BLASTING CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOLOGRAPHY LIGHTING MAGNETOGRAPHY MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PUNCHING METAL ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To equalize thickness of a core bar and suppress generation of thermal marbles by forming an aluminum alloy plate in a tubular form, welding a tube connection part, and performing cold-drawing to form the core bar of a roller. CONSTITUTION: In order to manufacture a roller used suitably as a setting roller adopted to a copying machine or a printer, an aluminum alloy plate which is evenly processed in thickness with high accuracy by rolling, etc., is formed in a tubular form so as to obtain inner and outer diameters larger than the desired ones. In this molding, the aluminum alloy plate is wound along a roll-like lower die, followed by pressing by means of an upper die. A core bar 1 having even thickness due to cold-drawing, after welding a pipe connection part. According to such manufacturing method, partial thickness is decreased compared to conventional pipe subjected to extruding and cold drawing, for instance, not less than 3%. An even deformation rate is obtained with the setting roller.