Central Motor Wheel Co., Ltd.

Eiji Takashima

Fumito Inuzuka

Masahide Furukawa

A method manufactures a vehicle wheel that includes a wheel rim having a cylindrical shape and a wheel disc provided on an inner peripheral side of the wheel rim. The method includes forming a workpiece of the vehicle wheel by casting or forging, the workpiece being a metal alloy workpiece; cutting a part of the workpiece to form a cut surface; coating, with a colored paint, the cut surface, an edge where the cut surface intersects a surface of the workpiece, and at least a portion around the edge in the surface of the workpiece; and chamfering the edge to form a bright surface where the workpiece is exposed, after coating the cut surface, the edge, and at least the portion around the edge.

Method for manufacturing vehicle wheel

A recess is formed on the periphery of each of through-holes that go through a rim cavity, and the outer surface of a rim part is cut while a seal member for sealing the through-hole is positioned on the recess. It is thereby possible to stably manufacture a vehicle wheel in which swarf tends not to remain inside the rim cavity. Furthermore, it is not necessary to avoid the seal member for sealing the through-hole when cutting the outer surface of the rim part, and the outer surface of the rim part can be cut without any distinction having to be made between the periphery of the through-hole and the rest of the outer surface. Any increase in manufacturing costs can be minimized.

Growing community of inventors

Aichi, Japan

Eiji Takashima