Method of manufacturing an annular member made from a metal...

Details Method of manufacturing an annular member made from a metal... Method of manufacturing an annular member made from a metal...

2005-08-09

2005-08-09

Compton, Eric (Department: 3726)

Metal working

Method of mechanical manufacture

Pulley making

C029S892110, C029S892300, C029S892000, C072S068000

Reexamination Certificate

active

06925713

ABSTRACT:
The present invention relates to a disc-shaped material made from metal sheet, provided for the manufacture of a pulley or the like. According to the present invention, even if the metal sheet is thin and light weight, a peripheral wall of sufficient strength can be formed, by the following steps: rotating the material held between a pair of dies and pressing an outer periphery of the material by means of a forming roller, in a radially inward direction, thereby thickening axially the outer periphery of the material to be extended to both sides of a non-processed portion, thus forming the peripheral wall.

REFERENCES:
patent: 3700382 (1972-10-01), Pacak
patent: 4749375 (1988-06-01), Guevel et al.
patent: 5113584 (1992-05-01), Wenzel
patent: 5237745 (1993-08-01), Yamanaka
patent: 5396787 (1995-03-01), Kanemitsu et al.
patent: 5440796 (1995-08-01), Deggau et al.
patent: 5699689 (1997-12-01), Yamanaka
patent: 5737955 (1998-04-01), Ohya et al.

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