Patent ID: 11926174
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Materials, metallurgy (Chemistry)
Classification: CPC B | IPC B

Claim 13:
14. A method for creating a localized lower apparent density within a cast wheel, comprising:
casting a wheel for an automobile vehicle including multiple spokes, individual ones of the multiple spokes being substantially identical to the other ones of the multiple spokes and are equidistantly spaced from a successive one of the multiple spokes to maintain an even weight distribution of the cast wheel, the cast wheel comprising a metal;
extending individual ones of the multiple spokes inwardly from a raised bead of a spider section to a centrally positioned axle receiving portion;
completely encapsulating a central portion of the individual ones of the multiple spokes by a metal of the multiple spokes; and
positioning an insert member in individual ones of the central portions, the insert member defining a vitreous material having a higher melting point than a melting point of the metal of the wheel the insert member displaces, having the insert member remaining permanently in place for a life of the wheel and is retained in a specific location, the insert member defining an internal bore, wherein a filler is disposed within the internal bore, the filler comprising agricultural bio content.