Method of producing motor vehicle wheels

Details Method of producing motor vehicle wheels Method of producing motor vehicle wheels

1983-09-16

1986-11-25

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

295277, 72 85, 301 65, B21H 102

Patent

active

046240381

ABSTRACT:
A heat treatable aluminum base alloy is cast in a permanent mold to form an annular preform having an annular disc portion projecting inwardly from first and second annular wing portions extending axially in opposite directions from the disc portion. The preform is mounted on rotatable mandrels having peripheral surfaces spaced inwardly from the corresponding wing portions, and a forming roller presses each wing portion inwardly against the corresponding mandrel surface while the mandrels and preform are rotating to shear-form each wing portion into a substantially thinner and wider rim portion conforming to the contour of the corresponding mandrel surface. In one embodiment, the disc portion of the preform is engaged by a forming roller and a pressure roller both of which move radially inwardly while the disc portion and adjacent mandrel are rotating to shear-form the disc portion inwardly into a thinner and radially wider disc portion. In another embodiment, an outer part of the disc portion is shear-formed by a forming roller fed axially and outwardly towards the wing portions.

REFERENCES:
patent: 2086488 (1937-07-01), Batie
patent: 3205688 (1965-09-01), Paulton
patent: 3672021 (1972-06-01), Schulte et al.
patent: 3822458 (1974-07-01), Schulte et al.

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