Two Brand New GranuCharge Systems in Canada at Equispheres and McGill University

September 22, 2020
Is electrostatics the next key parameter to manage AM processes?This is a big trend we observe in the AM field; electrostatics is causing trouble in the printers. From the conveying of the powder to the powder bed itself.Different materials, different conditions from the storage to the conditioned environment in the machine, the possibilities for an electrostatic charge build-up are huge.What is the risk?The powder can block the tubes during the conveying. The powder can stick...
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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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