An Experimental and Theoretical Study of Upsetting of Sintered Iron Compacts

  • M. S. J. Hashmi
  • H. S. Alkatib


Cylindrical sintered iron compacts of various initial densities were subjected to slow and fast upsetting processes under various frictional conditions and between flat and parellel platens. Stress-strain properties of the sintered compacts were obtained from quasi-static compression tests performed under lubricated conditions and expressed as a function of strain and the initial and current densities.

A finite-difference numerical technique was used to simulate the upsetting process incorporating the variable density-dependent stress-strain properties of the billet. This technique enabled the deformation behaviour of sintered iron compacts of any initial density, within the range of the study, to be studied theoretically.

Comparison of the predicted results with those obtained experimentally showed good agreement and suggests that the simulation technique should prove to be very useful in studying sintered iron compacts which do not easily conform to the analysis based on conventional plasticity theory.


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Copyright information

© The Department of Mechanical Engineering, University College of Swansea 1981

Authors and Affiliations

  • M. S. J. Hashmi
    • 1
  • H. S. Alkatib
    • 1
  1. 1.Department of Mechanical and Production EngineeringSheffield City PolytechnicSheffieldUK

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