Aluminum Powder Preparation for Additive Manufacturing Using Electrostatic Classification

This work aims to study the possibility of using an electrostatic drum-type separator prepare a powder with narrow size distribution curve for usage in additive manufacturing. The distributions uncoated commercial aluminum powders ASP-30, ASP-22, and ASP-5 were analyzed. It was shown that ASP-30 ASP-22 have similar asymmetric SPAN 1.480 1.756, respectively. powder, turn, has 0.869. chosen further experiment because, traditionally, separators are used classify large-sized materials particle more than 100 μm. optimal mode classification proposed selected powder. Various methods, including centrifugal electrostatic, compared. before after studied by XRD, SEM, TEM, TG–DSC analyses. obtained results showed does not lead formation coatings on processed powders. Electrostatic separation effectively narrows distribution, making it suitable valuable method initial