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Towards Automated Cleaning of Ceramic Vat Photopolymerization Prints
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DOI：10.1016/j.oceram.2026.101014.png)
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Abstract
En 中文
Vat photopolymerization (VPP) enables 3D printing of dense ceramics with complex geometries, but part cleaning remains a labour-intensive practice affecting quality, whereas automation can improve repeatability. We propose an automated cleaning procedure combining short ultrasonic exposure, solvent immersion, and drying. We sought to demonstrate whether porous and solid alumina and zirconia VPP prints can be cleaned automatically without damage or residual slurry. Porous alumina scaffolds were thoroughly cleaned after 120 wash cycles with propylene carbonate and 180 wash cycles with Lithasol 30 as a solvent, maintaining structural integrity. To compare to our previous manual cleaning results, hydroxyapatite scaffolds were cleaned automatically using ultrasonic cleaning or solvent immersion (Ressler & al. 2024). Solid zirconia cylinders were efficiently cleaned after 3–5 wash cycles, though propylene carbonate altered surfaces and robotic gripping caused edge damage. These results demonstrate the potential of automated cleaning to improve the predictability of VPP-printed ceramic part properties.
Keywords:
vat photopolymerization
solvents
print cleaning
automation
ceramics
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