Automotive parts produced by cold or hot forging steel bars are often heat treated after forging to reduce their grain size and obtain improvements in mechanical properties such as tensile, impact and fatigue properties. If heat treatments after forging can be eliminated, savings in energy and handling costs could be realised.Although rolling and cold drawing without additional heat treatments have been already used, hot forged components have not except a few applications because of low toughness properties when heat treating after forging is omitted. Tests in our laboratory have shown that the toughness and other mechanical properties of hot forged parts can be significantly improved without the use of post heat treatments. Results were as follows: By using the compositional and forging controls, automotive parts that were hot forged and air cooled had properties equivalent to those of the previous parts that were hot forged and subsequently heat treated.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Application of Microalloyed Steels to Achieve High Toughness in Hot Forged Components without Further Heat Treatments


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1986



    Publication date :

    1986-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    High Toughness Microalloyed Steels for Vital Automotive Parts

    Maeda, Chikatoshi / Ishikawa, Hideo / Nomura, Ichie et al. | SAE Technical Papers | 1989



    Microalloyed steels for automobile components

    Matsushima, Y. / Hasegawa, T. | Tema Archive | 1997


    Forged microalloyed steel crankshafts for automotive engines

    Tinius, C. / Mrdjenovich, R. | Tema Archive | 1996