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

1989-01-27

1990-01-09

Crane, Daniel C.

Metal deforming

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

During rotation of work

72106, B21H 500

Patent

active

048919624

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: 611632 (1898-10-01), Hoffman et al.
patent: 2170946 (1939-08-01), Grief
patent: 4524595 (1985-06-01), Oda
patent: 4596127 (1986-06-01), Hill

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