Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed

Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed

We have developed the first particle-based numerical tool to simulate the coating of powder particles in additive manufacturing devices. Our Discrete Element Method considers realistic particle shapes and incorporates attractive interaction (van-der-Waals) forces between the particles. From simulati...

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Bibliographic Details
Main Authors: Parteli Eric J. R., Pöschel Thorsten
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714015013
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spelling doaj-36db50096f5d432190bf8e230bf172522021-08-02T05:29:11ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011401501310.1051/epjconf/201714015013epjconf162347Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speedParteli Eric J. R.0Pöschel Thorsten1University of CologneUniversity of Erlangen-NurembergWe have developed the first particle-based numerical tool to simulate the coating of powder particles in additive manufacturing devices. Our Discrete Element Method considers realistic particle shapes and incorporates attractive interaction (van-der-Waals) forces between the particles. From simulations of powder coating using a roller as coating device, we find that the surface roughness of the powder bed scales with the square of coating speed. Moreover, we find that using fine, highly polydisperse powders may lead to larger powder bed roughness, compared to process simulations using coarser powders, due to the formation of agglomerates resulting from cohesive forces.https://doi.org/10.1051/epjconf/201714015013
collection DOAJ
language English
format Article
sources DOAJ
author Parteli Eric J. R.
Pöschel Thorsten
spellingShingle Parteli Eric J. R.
Pöschel Thorsten
Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
EPJ Web of Conferences
author_facet Parteli Eric J. R.
Pöschel Thorsten
author_sort Parteli Eric J. R.
title Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
title_short Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
title_full Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
title_fullStr Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
title_full_unstemmed Particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
title_sort particle-based simulations of powder coating in additive manufacturing suggest increase in powder bed roughness with coating speed
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2017-01-01
description We have developed the first particle-based numerical tool to simulate the coating of powder particles in additive manufacturing devices. Our Discrete Element Method considers realistic particle shapes and incorporates attractive interaction (van-der-Waals) forces between the particles. From simulations of powder coating using a roller as coating device, we find that the surface roughness of the powder bed scales with the square of coating speed. Moreover, we find that using fine, highly polydisperse powders may lead to larger powder bed roughness, compared to process simulations using coarser powders, due to the formation of agglomerates resulting from cohesive forces.
url https://doi.org/10.1051/epjconf/201714015013
work_keys_str_mv AT parteliericjr particlebasedsimulationsofpowdercoatinginadditivemanufacturingsuggestincreaseinpowderbedroughnesswithcoatingspeed
AT poschelthorsten particlebasedsimulationsofpowdercoatinginadditivemanufacturingsuggestincreaseinpowderbedroughnesswithcoatingspeed
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