FIELD: metallurgy.
SUBSTANCE: method involves filling of powder to a die, application of static pressure to it and passing of a current pulse through it; during application of pressure and passage of the current pulse, vibration of the die with frequency of 102-104 Hz and amplitude of 10-4-5·10-3 m is performed. At vibration of a ceramic die, interaction of its side surface with specimen material is reduced.
EFFECT: increasing durability of a ceramic die; improving removal of a specimen; as a result, items with smooth and even side surface are obtained.
1 ex, 1 dwg
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Authors
Dates
2015-02-10—Published
2013-10-15—Filed