Abstract
In dry compaction of metal powders, uniform fill of die cavities is critical for netshape production of high quality P/M parts using the conventional press and sinter approach. A fluidized fill shoe has been developed to increase powder flow rates and improve the uniformity of fill for complex-shaped die cavities. The new technology uses gas to “lubricate” powder particles, eliminate interparticle friction and improve powder flow rates. A fluidized fill shoe with a custom design delivery chute enables the delivery of powder in a fluidized state to the die cavity. This system enables the user to control powder delivery and greatly improve dimensional control.
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