Design of Integral Ductile Iron Steering Knuckles for Disc Brake Vehicles 690501

With the advent of disc brakes as standard equipment on some vehicles, an integral ductile iron steering knuckle has been developed to replace the assembly of a separate forged knuckle, steering arm, and disc brake housing bracket. The flexibility of the casting process has been applied to take advantage of the properties of ductile iron and to permit combination of components. The simplicity of the integral knuckle concept, which eliminates assembly operations and fasteners, makes the design inherently more reliable. A series of non-destructive tests has been devised to assure casting quality.
The paper describes the general approach to designing castings in ductile iron for this application, considering both functional and manufacturing requirements.


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