Powder Characterization At Low Stress State

April 17, 2020
Flow and stress fields are drastically different in 3D printers, die filling processes, powder inhalers or at the bottom of a huge silo. Therefore, in the framework of an application, the powder characterization methods have to be selected cleverly among the wide variety of available geometries and applied stresses. In powder bed based 3D printers, the confining pressure is low, the flow speed is relatively high and the free powder/gas interface plays an important role. Moreover, the density...
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