Roll forming notches in a thin-wall power transmission member

Details Roll forming notches in a thin-wall power transmission member Roll forming notches in a thin-wall power transmission member

1987-08-21

1989-04-11

Crane, Daniel C.

Metal deforming

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

With cutting of work or product

72 88, 72106, 72107, B21H 500, B21D 2830

Patent

active

048194689

ABSTRACT:
An apparatus and method for forming a power transmission member from a thin-walled blank, the apparatus including a pair of dies (84) having opposed work surfaces, and a mandrel (50) positioned between the work surfaces of the dies (84) for receiving a blank (52) to be formed and rotated upon movement of the work surfaces of the dies in opposite directions during a forming operation. The mandrel (50) includes a work surface for cooperating with the work surface of the dies (84). Notch forming projections (70) on the work surfaces of the dies (84) cooperate with the work surfaces of the mandrel (50) for roll punching notches (72) through the blank (52) as the blank (52) is rotated between the moving dies (84).

REFERENCES:
patent: 2488015 (1949-11-01), Ingram
patent: 4028922 (1977-06-01), Killop
patent: 4155237 (1979-05-01), Jungesjo

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