Isentropic compression of metal powder in impact compaction

  • L. A. Maksimenko
  • I. D. Radomyse1'skii
  • G. G. Serdyuk
  • M. B. Trakhtenberg
Theory and Technology of the Component Formation Process
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Conc lusions

  1. 1.

    At low impact pressing velocities, the compression of powder may be regarded as isentropic.

     
  2. 2.

    The good correlation found between ballistic and experimental evaluations enables the range of the required velocities to be theoretically determined with an accuracy of 10%.

     
  3. 3.

    A modified form of Kirkwood's equation of state quite accurately describes the impact compression process at loading velocities of 2–40 m/sec.

     
  4. 4.

    A comparison of density vs velocity, pressure vs density, and charge weight vs velocity curves obtained by calculation and experimental data demonstrates that the proposed method of calculation quite accurately describes, both qualitatively and quantitatively, the processes occurring during the pressing of metal powders.

     

Keywords

Experimental Data Compaction Experimental Evaluation Modify Form Metal Powder 

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Literature cited

  1. 1.
    Metalworking Production,3, No. 5, 48 (1967).Google Scholar
  2. 2.
    M. E. Serebryakov, Internal Ballistics [in Russian], Moscow (1949).Google Scholar
  3. 3.
    G. M. Lyakhov and G. I. Pokrovskii, Explosive Waves in Soils [in Russian], Gosgortekhizdat, Moscow (1962).Google Scholar
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    K. P. Stanyukovich, Nonsteady-State Motions of a Stationary Medium [in Russian], Izd-vo Tekh.-Teor. Lit., Moscow (1955).Google Scholar
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    G. Hirschfelder, C. Curtiss, and R. Bird, Molecular Theory of Gases and Liquids [Russian translation], IL, Moscow (1961).Google Scholar
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    M. Yu. Bal'shin, Powder Metallurgy [in Russian], Mashgiz, Moscow (1948).Google Scholar

Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1970

Authors and Affiliations

  • L. A. Maksimenko
    • 1
  • I. D. Radomyse1'skii
    • 1
  • G. G. Serdyuk
    • 1
  • M. B. Trakhtenberg
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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