Engineering & Technologies, Vol 7, No 4 (2014)

METAL-GRAPHITE SINTERED COMPOSITES WITH USING MECHANICALLY ACTIVATED MATERIALS

Ludmila I. Mamina, Sergey V. Belyaev, Igor V. Chuprov, Alexander I. Bezrukih, Vladimir N. Baranov, Igor V. Kostin

Abstract


The studies of the creation of low-cost metal-graphite inserts press-matrix used in the combined casting and rolling compaction are made. It`s founded that the mechanoactivation of starting materials improves sinterability of samples and increases their mechanical properties (strength and hardness). Being the study formulations provide high operational properties metal-graphite inserts was designed. The technological modes of preparation and sintering materials that reduce process time by 40-50 % and do not require the creation of special protective atmosphere are developed.