A previous investigation showed that minor variations in alloying elements in gray cast iron disc contributed to measurable differences in friction and disc wear. This investigation was undertaken to find out if and how the increased friction and disc wear might affect brake squeal. The SAE J2522 and J2521 dynamometer procedures as well as an OEM noise dynamometer procedure and a chassis dynamometer noise procedure were used to find out if a correlation between disc wear and brake squeal could be discovered. In all cases, as the wear rate of a disc increases under a given set of test conditions, disc material transfer to the pad surface increases, which results in increased friction and brake squeal. Also a good method to detect disc variability (disc to disc, within a disc) is discussed.


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    Titel :

    Brake Squeal and Disc Metallurgy Variability: Importance of Disc Wear


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Jeong, JooSeong (Autor:in) / Rhee, Seong (Autor:in) / Lee, SeongJoo (Autor:in) / Kim, ShinWan (Autor:in) / Kim, ShinWook (Autor:in)

    Kongress:

    SAE Brake Colloquium & Exhibition - 32nd Annual ; 2014



    Erscheinungsdatum :

    28.09.2014




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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