Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging
Abstract Powder spreading is a key step in the powder-bed-based additive manufacturing process, which determines the quality of the powder bed and, consequently, affects the quality of the manufactured part. However, powder spreading behavior under additive manufacturing condition is still not clear...
Guardado en:
Autores principales: | , , , , , , , , |
---|---|
Formato: | article |
Lenguaje: | EN |
Publicado: |
Nature Portfolio
2018
|
Materias: | |
Acceso en línea: | https://doaj.org/article/b02190fcc49545fd9455977808d1b2de |
Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
id |
oai:doaj.org-article:b02190fcc49545fd9455977808d1b2de |
---|---|
record_format |
dspace |
spelling |
oai:doaj.org-article:b02190fcc49545fd9455977808d1b2de2021-12-02T15:08:28ZRevealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging10.1038/s41598-018-33376-02045-2322https://doaj.org/article/b02190fcc49545fd9455977808d1b2de2018-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-33376-0https://doaj.org/toc/2045-2322Abstract Powder spreading is a key step in the powder-bed-based additive manufacturing process, which determines the quality of the powder bed and, consequently, affects the quality of the manufactured part. However, powder spreading behavior under additive manufacturing condition is still not clear, largely because of the lack of particle-scale experimental study. Here, we studied particle-scale powder dynamics during the powder spreading process by using in-situ high-speed high-energy x-ray imaging. Evolution of the repose angle, slope surface speed, slope surface roughness, and the dynamics of powder clusters at the powder front were revealed and quantified. Interactions of the individual metal powders, with boundaries (substrate and container wall), were characterized, and coefficients of friction between the powders and boundaries were calculated. The effects of particle size on powder flow dynamics were revealed. The particle-scale powder spreading dynamics, reported here, are important for a thorough understanding of powder spreading behavior in the powder-bed-based additive manufacturing process, and are critical to the development and validation of models that can more accurately predict powder spreading behavior.Luis I. EscanoNiranjan D. ParabLianghua XiongQilin GuoCang ZhaoKamel FezzaaWes EverhartTao SunLianyi ChenNature PortfolioarticlePowder SpreadingAdditive Manufacturing ProcessPowder ClustersSurface Roughness SlopeRepose AngleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018) |
institution |
DOAJ |
collection |
DOAJ |
language |
EN |
topic |
Powder Spreading Additive Manufacturing Process Powder Clusters Surface Roughness Slope Repose Angle Medicine R Science Q |
spellingShingle |
Powder Spreading Additive Manufacturing Process Powder Clusters Surface Roughness Slope Repose Angle Medicine R Science Q Luis I. Escano Niranjan D. Parab Lianghua Xiong Qilin Guo Cang Zhao Kamel Fezzaa Wes Everhart Tao Sun Lianyi Chen Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
description |
Abstract Powder spreading is a key step in the powder-bed-based additive manufacturing process, which determines the quality of the powder bed and, consequently, affects the quality of the manufactured part. However, powder spreading behavior under additive manufacturing condition is still not clear, largely because of the lack of particle-scale experimental study. Here, we studied particle-scale powder dynamics during the powder spreading process by using in-situ high-speed high-energy x-ray imaging. Evolution of the repose angle, slope surface speed, slope surface roughness, and the dynamics of powder clusters at the powder front were revealed and quantified. Interactions of the individual metal powders, with boundaries (substrate and container wall), were characterized, and coefficients of friction between the powders and boundaries were calculated. The effects of particle size on powder flow dynamics were revealed. The particle-scale powder spreading dynamics, reported here, are important for a thorough understanding of powder spreading behavior in the powder-bed-based additive manufacturing process, and are critical to the development and validation of models that can more accurately predict powder spreading behavior. |
format |
article |
author |
Luis I. Escano Niranjan D. Parab Lianghua Xiong Qilin Guo Cang Zhao Kamel Fezzaa Wes Everhart Tao Sun Lianyi Chen |
author_facet |
Luis I. Escano Niranjan D. Parab Lianghua Xiong Qilin Guo Cang Zhao Kamel Fezzaa Wes Everhart Tao Sun Lianyi Chen |
author_sort |
Luis I. Escano |
title |
Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
title_short |
Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
title_full |
Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
title_fullStr |
Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
title_full_unstemmed |
Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
title_sort |
revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging |
publisher |
Nature Portfolio |
publishDate |
2018 |
url |
https://doaj.org/article/b02190fcc49545fd9455977808d1b2de |
work_keys_str_mv |
AT luisiescano revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT niranjandparab revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT lianghuaxiong revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT qilinguo revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT cangzhao revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT kamelfezzaa revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT weseverhart revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT taosun revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging AT lianyichen revealingparticlescalepowderspreadingdynamicsinpowderbedbasedadditivemanufacturingprocessbyhighspeedxrayimaging |
_version_ |
1718388144337846272 |