Method of manufacturing rims for motor vehicles

Metal working – Method of mechanical manufacture – Wheel making

Reexamination Certificate

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Details

C029S894350, C029S894354, C072S353600, C072S393000, C301S006910

Reexamination Certificate

active

06935024

ABSTRACT:
A process of manufacturing a rim for a motor vehicle from an original pipe, in order to facilitate formation of projections for reducing road noise on the rim, comprises a projection forming step of partially extruding a ledge portion of an intermediate pipe for the rim from inside to outside in a radial direction of the ledge portion so as to form a plurality of projections at suitable intervals.

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