Austempered ductile iron (ADI) castings provide a unique combination of high strength and toughness coupled with excellent design flexibility for chassis applications.This paper describes the development of the upper control arm for the 1999 Ford Mustang Cobra as an austempered ductile iron casting. The full service development process used is described from initial design through finite element analysis (FEA), design verification, casting production, heat treatment, nondestructive evaluation and machining. To achieve significant weight savings, an austempered ductile iron casting was chosen for this application instead of an as-cast SAE J4341, Grade D4512 ductile iron casting or a steel forging.This is believed to be the first application of an austempered ductile iron casting for a safety critical, automotive chassis application.


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    Title :

    Austempered Ductile Iron Castings for Chassis Applications


    Additional title:

    Sae Technical Papers



    Conference:

    SAE 2000 World Congress ; 2000



    Publication date :

    2000-03-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Austempered ductile iron castings for chassis applications

    Warrick,R.J. / Althoff,P. / Mani,P.H. et al. | Automotive engineering | 2000





    Application of austempered ductile iron for chassis components

    Okada,F. / Sano,M. / Yamaguchi,M. et al. | Automotive engineering | 1987