Modelling of stamping of porous parts for obtaining forgings with the internal cone-shaped surface

 
A.O.Mikhailov,
  
E.V.Shtefan
 

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, 2018, #20
http://www.materials.kiev.ua/article/2755

Abstract

The finite-element method is used to study the process of forming a powder product with an inclined conical surface. Stamping is carried out in a stamp with an annular conical compensator. The laws of compaction and change in the shape of two types of workpieces are considered: with a uniform distribution of the initial properties over the volume and bimetallic. When stamping bimetallic blanks, the material of the upper layer is stronger than the material of the lower layer. In this case, the lower layer flows from under the upper layer. This phenomenon can be avoided due to differences in the initial porosities of the layers.


FINITE ELEMENT SIMULATION, FORGING, PLASTICITY, POROSITY