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contributor authorDu, Wenchao
contributor authorRoa, Jorge
contributor authorHong, Jaehee
contributor authorLiu, Yanwen
contributor authorPei, Zhijian
contributor authorMa, Chao
date accessioned2022-02-05T21:44:10Z
date available2022-02-05T21:44:10Z
date copyright3/29/2021 12:00:00 AM
date issued2021
identifier issn1087-1357
identifier othermanu_143_9_091002.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4276237
description abstractThis paper reports a study on the effects of particle size distribution (tuned by mixing different-sized powders) on density of a densely packed powder, powder bed density, and sintered density in binder jetting additive manufacturing. An analytical model was used first to study the mixture packing density. Analytical results showed that multimodal (bimodal or trimodal) mixtures could achieve a higher packing density than their component powders and there existed an optimal mixing fraction to achieve the maximum mixture packing density. Both a lower component particle size ratio (fine to coarse) and a larger component packing density ratio (fine to coarse) led to a larger maximum mixture packing density. A threshold existed for the component packing density ratio, below which the mixing method was not effective for density improvement. Its relationship to the component particle size ratio was calculated and plotted. In addition, the dependence of the optimal mixing fraction and maximum mixture packing density on the component particle size ratio and component packing density ratio was calculated and plotted. These plots can be used as theoretical tools to select parameters for the mixing method. Experimental results of tap density were consistent with the above-mentioned analytical predictions. Also, experimental measurements showed that powders with multimodal particle size distributions achieved a higher tap density, powder bed density, and sintered density in most cases.
publisherThe American Society of Mechanical Engineers (ASME)
titleBinder Jetting Additive Manufacturing: Effect of Particle Size Distribution on Density
typeJournal Paper
journal volume143
journal issue9
journal titleJournal of Manufacturing Science and Engineering
identifier doi10.1115/1.4050306
journal fristpage091002-1
journal lastpage091002-10
page10
treeJournal of Manufacturing Science and Engineering:;2021:;volume( 143 ):;issue: 009
contenttypeFulltext


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