The paint bake strengthening, i.e., the increase in yield strength due to strain aging during the paint curing cycle, can be used to achieve additional strengthening in formed steel parts. Many parameters affect this strengthening in water quenched continuously annealed steels. This paper describes the effects of quenching and overaging temperatures, the mode and direction of deformation, manganese level, and the nature of microstructures on the paint bake strengthening in continuously annealed steels. The most important parameter affecting the paint bake strengthening is the overaging temperature. It is shown that for temper rolled steels overaged below 274°C (525°F), introduction of a certain minimum strain during stamping is not necessary to take advantage of the paint bake strengthening. Also, paint bake strengthening in partially recrystallized and fully recrystallized dual phase steels are found to be comparable. It is suggested that when good formability is necessary, specifying the minimum yield strength in the formed part after paint bake aging may be more desirable than specifying it in the as-shipped condition.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Paint Bake Strengthening in Water Quenched Continuously Annealed Steels


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1984



    Publication date :

    1984-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Paint bake strengthening in water quenched continuously annealed steels

    Gupta,I. / Bhat,S.P. / Chine,R.S. et al. | Automotive engineering | 1984


    Use of continuously annealed bake hardenable steels for automobile outer panels

    Kouch, I. / Owens, T. / Bala, M. et al. | Tema Archive | 1990


    Use of Continuously Annealed Bake Hardenable Steels for Automobile Outer Panels

    Kovch, Irene / Bala, Mark / Thompson, Robert et al. | SAE Technical Papers | 1990


    Use of continuously annealed bake hardenable steels for automobile outer panels

    Kovch,I. / Owens,T. / Bala,M. et al. | Automotive engineering | 1990


    Characteristics of box-annealed bake-hardenable steels

    Zaccone, D.C. / Elger, J.A. / Michalak, J.T. et al. | Tema Archive | 1990