Numerical modeling of complex-form powder-article pressing in rigid dies: effect of pressing scheme on density distribution - II: techniques of modeling and analysis of formation schemes

摘要

Modification of the finite element method has been performed which is based on the theory of porous body plasticity and may be used for modeling of powder material pressing. A number of schemes for pressing articles are considered. The influence of friction and pressing scheme on densification has been established. The scheme, the use of which ensures production of articles with uniform density distribution, is especially studied. The theoretical results obtained are close enough to experimental ones.