PROCESS OF COMPACTION OF PARTS WITH HOLES BY IMPOSITION OF VIBRATION OF ROD Russian patent published in 2001 - IPC

FIELD: powder metallurgy, specifically, formation of parts from metal powders in closed moulds with imposition of vibration. SUBSTANCE: according to proposed process vibration is imposed directly on forming rod during fill-up of mould with powder. Powdery mass acquires properties of viscous liquid under vibration and fills up moulds of various complicity near vibrating surface in correspondence with Pascal's law. Process makes it possible to produce parts with complex holes of uniform density. EFFECT: formation of complex holes of uniform density. 3 dwg