NUMERICAL MODELLING OF THE COMPACTION OF POWDER ARTICLES OF COMPLEX SHAPE IN RIGID DIES

EFFECT OF COMPACTION SCHEME ON DENSITY DISTRIBUTION II. MODELLING PROCEDURE AND ANALYSIS OF FORMING SCHEMES

Mikhailov, O. V.
Shtern, M. B.

Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kiev, Ukraine 03142

Powder Metallurgy & Metal Ceramics 42(4):p 114-121, March-April 2003.

A modified finite element method is proposed using a previously formulated version of porous body plasticity theory, which is intended for modelling compaction of powder materials. A number of compaction schemes are considered for articles with changes with respect to height. The effect of external friction and compaction scheme on the occurrence of compaction is analyzed. A compaction scheme whose use provides preparation of powder articles with uniform density distribution is studied separately. Theoretical results obtained are quite close to experimental data.