We studied the relationship between disc thickness variation (DTV) and casting material properties and clarified that the circumferential homogeneity of brake discs has significant effects on brake judder. As a solution, we established an integrated system for developing and manufacturing homogeneous brake discs to reduce judder by making the most of our integrated business process from R&D through manufacturing, including our in-house foundries. The system we developed consists of the following elements: foundry engineering to obtain homogeneous discs, an original flake graphite structure index (K-FGI) to measure the homogeneity of our products, and accelerated wear tests on a brake dynamometer to estimate the potential on-brake DTV growth.


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    Titel :

    Design for Homogeneity of Brake Discs to Reduce Judder, from R&D to Manufacturing


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    25th Annual Brake Colloquium ; 2007



    Erscheinungsdatum :

    2007-10-07




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Okamura, T. / Imasaki, M. / Society of Automotive Engineers | British Library Conference Proceedings | 2007



    High-Precision Brake Discs to Reduce Judder

    Herai, Junji / Hasegawa, Kiyoshi / Okamura, Toshikazu | SAE Technical Papers | 2005


    High-Precision Brake Discs to Reduce Judder

    Okamura, T. / Hasegawa, K. / Herai, J. et al. | British Library Conference Proceedings | 2005


    Brake judder

    Jacobsson, Helena | TIBKAT | 2001