High-Speed Alumina Stereolithography

The additive manufacturing of ceramics offers a reliable and repeatable method for fabricating parts with complex geometries. To compete with conventional ceramic forming methods, the time and cost associated with material and process optimization for ceramic stereolithography should be improved. Co...

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Main Authors: Fiona Spirrett, Tatsuya Ito, Soshu Kirihara
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/19/9760
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author Fiona Spirrett
Tatsuya Ito
Soshu Kirihara
author_facet Fiona Spirrett
Tatsuya Ito
Soshu Kirihara
author_sort Fiona Spirrett
collection DOAJ
description The additive manufacturing of ceramics offers a reliable and repeatable method for fabricating parts with complex geometries. To compete with conventional ceramic forming methods, the time and cost associated with material and process optimization for ceramic stereolithography should be improved. Computational analysis methods can be utilized to reduce the number of experimental steps required for material and process optimization. This work used the discrete element method and ray tracing analyses to predict suitable material parameters and processing conditions for ceramic stereolithography. The discrete element method was used to create alumina particle dispersion models to predict suitable paste compositions, and ray tracing was used to predict suitable laser power and scan speed to achieve a sufficient curing depth for stereolithography processing. The predicted conditions of paste composition and processing parameters were comparable to experimental values, reducing the number of experimental iterations required for process optimization. Furthermore, suitable processing parameters for high-speed fabrication by stereolithography was predicted, achieving a processing speed much faster than previously reported ceramic stereolithography. The reduction in process optimization timeline, and the increase in fabrication speed, could increase the appeal of ceramic stereolithography to industry.
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spelling doaj.art-0ee184e373d04ef1945b3595a14c815f2023-11-23T19:45:18ZengMDPI AGApplied Sciences2076-34172022-09-011219976010.3390/app12199760High-Speed Alumina StereolithographyFiona Spirrett0Tatsuya Ito1Soshu Kirihara2Joining and Welding Research Institute, Osaka University, Osaka 567-0047, JapanJoining and Welding Research Institute, Osaka University, Osaka 567-0047, JapanJoining and Welding Research Institute, Osaka University, Osaka 567-0047, JapanThe additive manufacturing of ceramics offers a reliable and repeatable method for fabricating parts with complex geometries. To compete with conventional ceramic forming methods, the time and cost associated with material and process optimization for ceramic stereolithography should be improved. Computational analysis methods can be utilized to reduce the number of experimental steps required for material and process optimization. This work used the discrete element method and ray tracing analyses to predict suitable material parameters and processing conditions for ceramic stereolithography. The discrete element method was used to create alumina particle dispersion models to predict suitable paste compositions, and ray tracing was used to predict suitable laser power and scan speed to achieve a sufficient curing depth for stereolithography processing. The predicted conditions of paste composition and processing parameters were comparable to experimental values, reducing the number of experimental iterations required for process optimization. Furthermore, suitable processing parameters for high-speed fabrication by stereolithography was predicted, achieving a processing speed much faster than previously reported ceramic stereolithography. The reduction in process optimization timeline, and the increase in fabrication speed, could increase the appeal of ceramic stereolithography to industry.https://www.mdpi.com/2076-3417/12/19/9760discrete element methodray tracingstereolithographyaluminaadditive manufacturingceramics
spellingShingle Fiona Spirrett
Tatsuya Ito
Soshu Kirihara
High-Speed Alumina Stereolithography
Applied Sciences
discrete element method
ray tracing
stereolithography
alumina
additive manufacturing
ceramics
title High-Speed Alumina Stereolithography
title_full High-Speed Alumina Stereolithography
title_fullStr High-Speed Alumina Stereolithography
title_full_unstemmed High-Speed Alumina Stereolithography
title_short High-Speed Alumina Stereolithography
title_sort high speed alumina stereolithography
topic discrete element method
ray tracing
stereolithography
alumina
additive manufacturing
ceramics
url https://www.mdpi.com/2076-3417/12/19/9760
work_keys_str_mv AT fionaspirrett highspeedaluminastereolithography
AT tatsuyaito highspeedaluminastereolithography
AT soshukirihara highspeedaluminastereolithography