Ductile Iron Vehicle Hub and Method for Producing Same

Author:  Larry B Hester, Dayton, OH
Source:  US Patent 6,009,980
Doc ID:  2000013
Year of Publication:  2000
Abstract:  
An improved ductile iron vehicle hub and method for producing the same wherein the method includes the steps of (a) providing a vehicle hub formed from ductile iron and including a generally axially extending body having a centrally located opening formed therethrough, the body including an open inner end, an open outer end, and a generally radically outwardly extending flange; and (b) shot peening selected outer surfaces of the body of the vehicle hub to induce compressive stresses therein to improve the fatigue life the vehicle hub.