Apparatus for forming a cup-shaped cage

Details Apparatus for forming a cup-shaped cage Apparatus for forming a cup-shaped cage

1998-02-27

1999-10-26

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

72393, B21D 2206

Patent

active

059707763

ABSTRACT:
An apparatus for forming a cup-shaped cage, including a cup-shaped workpiece, an outer die having a center axis and a cavity about the center axis, an inner die coaxially disposed within the cavity of the outer die, and a mandrel adapted to move axially and radially the inner die relative to the outer die. The outer and inner dies have first and second control surfaces which are engaged with outer and inner surfaces of the workpiece, respectively, when the outer and inner dies are in the cooperative press position. The outer die includes a part allowed to be out of contact with the outer surface of the workpiece to permit the movement of the inner die relative to the outer die into the cooperative press position.

REFERENCES:
patent: 565993 (1896-08-01), Ketchum
patent: 1997323 (1935-04-01), Strnad
patent: 2198873 (1940-04-01), Hinsdale
patent: 3986250 (1976-10-01), Belsdorf
patent: 4559692 (1985-12-01), Morin
patent: 4843864 (1989-07-01), Welschof
patent: 4942652 (1990-07-01), Hazebrook et al.
patent: 5001920 (1991-03-01), Ishinaga et al.

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