Planar Twist Extrusion versus Twist Extrusion

A modification of Twist Extrusion (TE) process, Planar Twist Extrusion (PTE) with a die having two flat parallel walls moving by the plunger, was designed and implemented in the present study. Characteristics of the deformed state after PTE and TE as well as pressures involved in the processes were...

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Bibliographic Details
Published in:Journal of materials processing technology 2011-03, Vol.211 (3), p.522-529
Main Authors: Beygelzimer, Y., Prilepo, D., Kulagin, R., Grishaev, V., Abramova, O., Varyukhin, V., Kulakov, M.
Format: Article
Language:English
Subjects:
Deformation mechanisms
Extrusion
Extrusion dies
Finite element method
Homogenization
Mathematical analysis
Movable die walls
Planar Twist Extrusion
Plungers
Severe plastic deformation
Simple shear
Strain distribution
Twist Extrusion
Walls
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Summary:A modification of Twist Extrusion (TE) process, Planar Twist Extrusion (PTE) with a die having two flat parallel walls moving by the plunger, was designed and implemented in the present study. Characteristics of the deformed state after PTE and TE as well as pressures involved in the processes were studied by means of experiments on aluminum samples and finite element modelling. The differences in a character of the strain distribution and mechanisms of its accumulation during PTE and TE were established. Both processes permitted mixing of the samples on a microscale.
ISSN:0924-0136
DOI:10.1016/j.jmatprotec.2010.11.006