A free-machining, lead-free steel with shape-controlled sulfide inclusions developed in Japan provides almost equivalent machinability, and equivalent or higher fatigue strength for rocker arms and crankshafts, compared with leaded steels. It also has superior chip-breakability. The inclusions in this steel have a core-and-shell structure consisting of oxides (CaO-Al2O3) and sulfides (Ca,Mn)S. The steel provides tool life four times greater than that of lead-containing free-machining steel.


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    Titel :

    Free-machining lead-free steel made for automobile parts


    Erschienen in:

    Erscheinungsdatum :

    2004


    Format / Umfang :

    1 Seite



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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