Abstract
The compaction of carbonyl nickel powders, nickel-based mixtures, and iron, aluminum, and magnesium powders in cylindrical molds is experimentally studied, the billet height being continuously recorded in a testing machine. The theory of plasticity for powder bodies is used to analyze the strain hardening of the matrix forming a powder body in pressing. It is established that shear yield stress and strain hardening of the matrix determine the shape of the compaction curve and the final density of the powder body.
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