Patent ID: 6530624
Filing Date: 2003-03-11
Classification: B60B

Abstract:
A two-piece wheel for a motor vehicle having hollow spokes which are arranged in a rim spider between air openings comprising:a core made of a metal foam which remains in the rim spider, and a friction weld between spaced weld ring surfaces of the rim spider and the rim by which the rim spider and the rim are connected with one another, wherein the core made of the metal foam includes at least one core portion which extends out of the openings between the spaced weld ring surfaces of the rim spider so as to be borne in a casting die tool and is to be disposed in the casting die tool, and wherein the core portion is supported in a plane in a base of a top core of the casting die tool and, including at least one of the weld ring surfaces, extends to a plane of a hump surface of said rim spider, and wherein a division of the casting die tool into the top core and a bottom core takes place in the plane of the hump surface.