Abstract
The investigation established that, in contrast to compaction in a closed die, the compressibility coefficient for the rolling of metal powders is not equal to the densification coefficient. The ratio of the compressibility coefficient to the densification coefficient for the rolling of metal powders gives the extension coefficient of the powder volume, the value of which is constant for each material being rolled and is always greater than unity. With a gravity feed of powder, the values of the compressibility and densification coefficients are uniquely determined by the maximum specific pressure and, consequently, by the strip density. When the rolling width, strip thickness, and angle of rolling are varied by changing the conditions of powder feed into the deformation zone at a given strip density, the rolling coefficients are not affected.
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