17-4 PH stainless steel has been successfully formed by powder metallurgy (P/M) injection molding. Injection molding is a relatively new P/M technique. In this process, metal powder is mixed with a plastic binder, and the part shape is injection molded as in plastics fabrication practice. The binder is extracted, and the part is sintered to 95-96% of full density.Sintering atmospheres and temperature profiles for optimized material properties were developed. Material mechanical properties were evaluated by tensile, impact, and fatigue tests. Five prototype fin bases for a missile were fabricated. The effect of Hot Isostatic Pressing was determined. The mechanical properties compare favorably to those of investment cast or wrought 17-4 PH steel.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Injection Molding of 17-4 PH Stainless Steel


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aerospace Congress and Exposition ; 1984



    Publication date :

    1984-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Injection molding of 316L stainless steel microstructures

    Liu, Z. Y. / Loh, N. H. / Tor, S. B. et al. | British Library Online Contents | 2003




    The Weldability Study of Stainless Steel Fabricated by Metal Injection Molding and Powder Metallurgy for Optoelectronic Packages

    IEEE Lasers and Electro-optics Society | British Library Conference Proceedings | 2005


    Injection Molding

    Haaxma, H. | SAE Technical Papers | 1967