A prototype PHdW 250 double-action press (dies closing force up to 2500 kN) was used for single-operation forming of automotive star-pieces (10 mm in diameter) by cold radial extrusion. The PA2 aluminium and 10 or 15 HGM steel rods (30 mm to 32.5 mm in length, 16.5 mm in diameter) were used as preforms in the study. Zinc stearate or molybdenum disulphide were used as greases. The steel surface was additionally phosphatized. The product quality confirmed the design assumptions for the technological process and the performance of the prototype press. Micro- and macrostructures of the formed material were shown on photographs.


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    Title :

    Wyciskanie promieniowe na zimno krzyzaka samochodowego


    Additional title:

    Eine Radialkaltfließpressen von Autokreuzstücken
    Cold radial extrusion of automotive star-piece


    Contributors:

    Published in:

    Publication date :

    1999


    Size :

    8 Seiten, 14 Bilder, 2 Tabellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    Polish




    Biuletyn informacyjny transportu samochodowego

    Instytut Transportu Samochodowego, Warschau | TIBKAT | 13.1965 - 18.1970; [19.]1971 - [21.]1973


    Poradnik mechanika samochodowego

    Pierożyński, Tadeusz ;Majewski, Tadeusz | SLUB | 1955


    Motoryzacja : pismo transportu samochodowego

    TIBKAT | Nachgewiesen 19/20.1964/65 -


    Przeglad dokumentacyjny transportu samochodowego

    TIBKAT | 1.1953 - 10.1962; [11.]1963 - [14.]1966; 15.1967; [16.]1968 - [17.]1969; 18.1970 - 21.1973


    Motoryzacja : miesie̜cznik transportu samochodowego

    TIBKAT | 1.1946,Aug. - ; auch mit durchgehender Nr.-Zählung