Method for forming a hub disk and metal spinning roller for use

Details Method for forming a hub disk and metal spinning roller for use Method for forming a hub disk and metal spinning roller for use

1999-03-17

2000-08-22

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

With cutting of work or product

29894362, B21H 102

Patent

active

061054100

ABSTRACT:
The invention relates to a method for forming a hub disk, in which a circular blank-like workpiece is placed in a flow-forming machine and fixed with at least one overarm support, an area of the outer contour of the overarm support corresponding to an area of the inner contour of a hub to be formed, the circular blank-like workpiece is rotated, at least one roller is infed and substantially radially moved in, a material flow taking place on the workpiece, and the radial moving in of the roller is ended when the distance between an area of the outer profile of the roller and the overarm support corresponds to the desired thickness of the hub wall and during the infeeding of the roller the workpiece is initially contacted by a cutting or separating edge of the roller and the material flow along the roller and therefore the axial length of the hub is limited by the roller geometry. The invention also relates to a roller for use in forming a hub disk, the outer circumference of the roller having a cutting edge, with which it initially contacts a workpiece to be formed, and a circumferentially positioned projection spaced from the cutting edge is provided for limiting the axial material flow.

REFERENCES:
patent: 2379584 (1945-07-01), Litton
patent: 3335597 (1967-08-01), Gobien
patent: 4823580 (1989-04-01), Kadotani
patent: 5823904 (1998-10-01), Hodjat et al.
patent: 5829291 (1998-11-01), Tanaka et al.

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