Cast wheel with hollow core insert

摘要

Cast metal wheels, such as those made of aluminum and magnesium alloys generally have a thick cross section in the area where the wheel disc joins the rim. The disclosed invention is drawn to a device for reducing the weight of a cast metal vehicle wheel. The device includes an annular tube which is supported in the mold in the wheel is cast. The device is then cast within the wheel rim or disc and forms a hollow cavity inside the wheel which reduces the weight of the wheel.