FIELD: powder metallurgy, possibly manufacture of powder articles with dents and indentations on their ends and with inclined lateral surfaces.
SUBSTANCE: method comprises steps of filling press-mold with powder charge; realizing cold pressing of blank and forming on its end dents and indentations with inclined lateral surfaces; calculating inclination angle of said lateral surfaces according to formula: tg α = 3fξ/2(1 - ξ), where f - friction factor of pressed powder charge along lateral surfaces of protrusions of punch and die; ξ - lateral pressure factor; then performing sintering and if necessary cold or hot after-pressing.
EFFECT: enhanced quality of powder articles due to uniform distribution of density in their whole volume.
2 cl, 3 dwg, 1 ex
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