Method for splining and flanging thin-walled members

Details Method for splining and flanging thin-walled members Method for splining and flanging thin-walled members

1987-02-26

1988-05-03

Crane, Daniel C.

Metal deforming

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

During rotation of work

72106, 291592, B21H 502, B21D 5328

Patent

active

047411910

ABSTRACT:
A method for forming a power transmission member (42) from a thin-walled blank. The apparatus (10, 110, 210) comprises a pair of opposed toothed dies (26, 30; 112, 114; 138, 140). Initial opposed movement of dies (112, 114; 138, 140) from a loading position simultaneously engages opposing pairs of similar rough forming teeth (124, 126, 128) and mandrel teeth (48) with a sleeve portion (46) therebetween, rough forming splines therein. The dies (112, 114; 138, 140) are then moved in the reverse direction, simultaneously engaging opposed pairs of similar finishing teeth (130, 132) and the mandrel teeth (48) with the sleeve (46) therebetween to finish forming the splines (64) therein. Opposed rows of raised synchronizing teeth (142) respectively extend along the toothed work surfaces of the dies and mandrel and are spaced inwardly therefrom, meshing together to rotate the mandrel and coordinate the relative movement of the dies and mandrel during a splining operation.

REFERENCES:
patent: Re31116 (1983-01-01), Anderson
patent: 236085 (1880-12-01), Reynolds
patent: 744231 (1903-11-01), Puddefoot
patent: 890870 (1908-06-01), Reed
patent: 1004980 (1911-10-01), Broadfield
patent: 3982415 (1976-09-01), Killop
patent: 4155237 (1979-05-01), Jungesjo

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