Metal deforming – By application of fluent medium – or energy field – With actuated tool engaging work
Patent
1990-09-13
1991-07-16
Eley, Timothy V.
Metal deforming
By application of fluent medium, or energy field
With actuated tool engaging work
72 62, 2989211, 298923, B21D 1506, B21K 142
Patent
active
050314335
ABSTRACT:
An appratus and method for manufacturing a pulley having a generally V-shaped groove therein is provided. The apparatus includes a press section and a molding section. The starting material for forming the pulley is a ring-shaped workpiece which is preferably composed of a bendable metal. The apparatus clamps the workpiece about a central annular portion thereof. Other parts of the apparatus bend upper and lower annular portions of the workpiece radially outwardly, thereby forming a V-shaped groove. The pulley is formed by a single thrusting motion of the press section. The bottom portion of the V-shaped groove has a uniform thickness which is not thinned by the action of the press.
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Nishimura Kazuo
Tsuchiya Kozaburo
Dungba Vo Peter
Eley Timothy V.
Sanden Corporation
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