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Discrete element simulation and experimental study of powder spreading process in additive manufacturing

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Figure

Fig. 1. Characterisation of particle shapes for (A) EOS HP3 PEK, (B) impact-milled PEEK and (C) disk-milled PEEK
Fig. 2. A representation of the device simulation set-up. The non-spherical (rod-shaped) particles with different aspect ratios A r , which are approximated using a multi-sphere
Fig. 3. Definition of parameters used in the post processing. The bed thickness, droller and the geometric parameters y min , y max , y lo , z hi , z lo are presented
Fig. 4. The effects of particle shape, V T
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