SPINNING MOLDING PROCESS, SPINNING MOLDING APPARATUS, SPINNING MOLDING RAW MATERIAL, SPINNING MOLDING PROCESS OF VEHICLE WHEEL, AND SPINNING MOLDING APPARATUS OF VEHICLE WHEEL

摘要

A process for manufacturing a vehicle wheel has the steps of preparing a wheel raw material in which a rim raw material is integrally formed at a peripheral edge of a disk member, forming a rim portion by spinning the rim raw material while rotating the wheel material about the axis of the disk member, and thereafter heat processing such spin molded raw material and then cut machining the same. The process is characterized in that it further comprises the step of forming the thickness of only both edges of the rim portion greater than the finish dimension.