Conferences

Simulation of the Equalchannel Angular Extrusion of Porous Preforms using Different Loading Patterns

   

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2012, #09/10
http://www.materials.kiev.ua/article/1080

Abstract

The results from simulation of equal-channel angular extrusion of sintered porous preforms with use of different deformation patterns are presented. It is shown that the maximal equidensity and minimum volume of the underconsolidated preform area was observed in the deformation pattern with a moving lower bottom plate of the horizontal matrix channel and opposite pressure on the extruded part of the specimen. This deformation pattern is also determined by the maximum values of deformation force.


DEFORMATION, EQUAL-CHANNEL ANGULAR EXTRUSION, OPPOSITE PRESSURE, POROSITY