Method for producing a rim for a vechicle wheel
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United States of America Patent
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Dec 3, 1996
Grant Date -
N/A
app pub date -
Oct 27, 1993
filing date -
Oct 27, 1993
priority date (Note) -
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Abstract
An improved method is disclosed for producing a wheel rim for use in a vehicle wheel. The method includes the steps of: (a) providing a flat sheet of material; (b) forming the flat sheet into a hoop having a first predetermined axial length; (c) expanding the hoop to a predetermined inner hoop diameter; (d) flow spinning the hoop to produce a wheel rim preform having a second predetermined axial length greater than the first predetermined axial length, the wheel rim preform including opposed axial ends and a thinned axially extending intermediate portion located between the axial ends; (e) subsequent to step (d), flaring at least one axial end of the wheel rim preform; and (f) subsequent to step (e), subjecting the wheel rim preform to a series of roll forming operations to produce a finished wheel rim having at least one tire bead seat retaining flange, at least one tire bead seat surface, and a generally axially extending well.
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