METHOD OF PULSED PRESSING OF HARD POWDER MATERIALS AND DEVICE FOR ITS EMBODIMENT Russian patent published in 1997 - IPC

Abstract RU 2083328 C1

FIELD: powder metallurgy, particular, methods for pressing articles by high pulsed pressure values from various hard powder materials, including nanodimensional, and devices for their embodiment. SUBSTANCE: the offered method includes pressing of hard powder materials by single-ended and double-ended application forces including freeing of article by removing holder from split shell, fixing of upper and lower end faces of article, and prior to removal of holder from split shell, stationary forces are applied to upper article and anvil (or lower punch) along the axis of pressing, and only after that, the shell is removed. Then, stationary force is removed. EFFECT: increased yield of articles and higher density of pressed billets. 6 cl, 3 dwg

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RU 2 083 328 C1

Authors

Ivanov V.V.

Paranin S.N.

Vikhrev A.N.

Dates

1997-07-10Published

1994-10-25Filed