The influence of porous parts torsion on their compactibility in the closed die

  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Mathematical Models and Computing Experiment in Material Science - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2013, #15
http://www.materials.kiev.ua/article/790

Abstract

Computer simulation revealed that the presence of shear strain caused by torsion of the porous preform to reduce the amount of axial pressure required to produce the same density, to increase the compressibility of the material. At the same time hardening the material of the solid phase of the porous body due to torsion, resulting in increased thrust. The final result depends on the ratio of the impact of these factors.


A METHOD OF FINITE ELEMENTS, DENSIFICATION, PLASTICITY, POROSITY, PRESSING OF POWDERS, TORSION