Method for producing a variable thickness rim for a vehicle whee

Details Method for producing a variable thickness rim for a vehicle whee Method for producing a variable thickness rim for a vehicle whee

1997-04-04

1998-11-10

Echols, P. W.

Metal working

Method of mechanical manufacture

Wheel making

29894322, 2989435, 29894354, 301 95, B21D 5330

Patent

active

058326090

ABSTRACT:
An improved method for producing a wheel rim for use in a vehicle wheel. The method includes the steps of: (a) providing at least two individual flat sheets of material having different thicknesses; (b) securing the two flat sheets of material together by welding to form a rim blank; (c) forming the rim blank into a generally cylindrical hoop having a first discrete section defined by one of the two flat sheets of material and a second discrete section defined by the other one of the two flat sheets of material, the first discrete section of the hoop defining a first outer diameter, extending a first axial length, and including a substantially uniform first thickness throughout the entire first axial length thereof, the second discrete section of the hoop defining a second outer diameter, extending a second axial length, and including a substantially uniform second thickness throughout the second axial length thereof; (d) subjecting the hoop to a series of metal forming operations to produce a finished wheel rim having at least one tire bead seat retaining flange and at least one tire bead seat surface.

REFERENCES:
patent: 3129496 (1964-04-01), Cox
patent: 3347302 (1967-10-01), Lemmerz
patent: 3846886 (1974-11-01), Schroder et al.
patent: 3926025 (1975-12-01), Schroder et al.
patent: 4127020 (1978-11-01), Bosch
patent: 4127022 (1978-11-01), Bosch
patent: 4143533 (1979-03-01), Bosch
patent: 4185370 (1980-01-01), Evans
patent: 4962587 (1990-10-01), Ashley, Jr. et al.

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