Admissible Velocity Field and Energy Dissipation Rate forDifferential Speed Roll Compaction of Metal PowderAnalysis of Differential Speed Roll Compaction of Metal Powder (lst)

摘要

An admissible velocity field involvingarbitrary variables for differential speed rollcompaction of metal powder is determined under somebasic assumptions. The main assumption is that theplane perpendicular to the rolling direction about thepowder position where densification starts advancestoward the exit by gradually changing its inclination.The total energy dissipation rate, which is the sum ofthe energy due to compaction of powder and to frictionat high and low speed roll / powder interfaces, iscalculated using the mechanics of powder compaction andthe admissible velocity field proposed.