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J. Compos. Sci.
Volume 8
Issue 7
10.3390/jcs8070233
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Article

Hybrid Fabrication of Zirconia Parts with Smooth Surface Texture and Tight Tolerances

by
Laurent Spitaels
1,
Valentin Dambly
1,
Aiora Beobide Otaegi
2,
Julien Bossu
1,
Cathy Delmotte
3,
Gregory Martic
3,
Enrique Juste
3,
Raoul Carrus
4,
Pedro-José Arrazola
2,
Fabrice Petit
3,
Edouard Rivière-Lorphèvre
1 and
François Ducobu
1,*
1
UMONS Research Institute for Materials Science and Engineering, University of Mons, Place du Parc 20, 7000 Mons, Belgium
2
Faculty of Engineering, Mondragon Unibertsitatea, Loramendi 4, 20500 Arrasate-Mondragón, Spain
3
Belgium Ceramic Research Centre, Avenue Gouverneur Cornez 4, 7000 Mons, Belgium
4
SIRRIS, Collective Centre for and by the Technological Industry, 12 Rue Bois Saint Jean, 4102 Seraing, Belgium
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2024, 8(7), 233; https://doi.org/10.3390/jcs8070233
Submission received: 8 May 2024 / Revised: 6 June 2024 / Accepted: 20 June 2024 / Published: 22 June 2024
(This article belongs to the Special Issue Recent Progress in Hybrid Composites)
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Abstract

The conventional manufacturing chain for technical ceramics is too expensive for the production of small series or unique parts with complex designs. Hybrid machines that combine additive and subtractive processes can be an interesting solution to overcome this technology lock-in. However, despite the great interest in hybrid machines for metallic parts, there is a lack of data in the literature when it comes to ceramics. The purpose of this paper is to contribute to closing this gap. It is the first to evaluate the achievable geometrical tolerances according to ISO 2768-2 as well as the surface textures of composite zirconia parts shaped sequentially by pellet additive manufacturing (PAM, from ceramic injection molding feedstock) and finish milling. The green parts were then debinded and sintered to analyze the influence of these steps. Compared to the initial green parts, the sintered parts exhibited shiny and smooth surfaces with sharp edges. Flatness, parallelism and perpendicularity all achieved an H (fine) class, while the surface textures were significantly improved, resulting in arithmetic roughness (Ra) below 1.6 µm.
Keywords: material extrusion; surface texture; geometrical tolerances; zirconia; milling; hybrid; composite material extrusion; surface texture; geometrical tolerances; zirconia; milling; hybrid; composite

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MDPI and ACS Style

Spitaels, L.; Dambly, V.; Beobide Otaegi, A.; Bossu, J.; Delmotte, C.; Martic, G.; Juste, E.; Carrus, R.; Arrazola, P.-J.; Petit, F.; et al. Hybrid Fabrication of Zirconia Parts with Smooth Surface Texture and Tight Tolerances. J. Compos. Sci. 2024, 8, 233. https://doi.org/10.3390/jcs8070233

AMA Style

Spitaels L, Dambly V, Beobide Otaegi A, Bossu J, Delmotte C, Martic G, Juste E, Carrus R, Arrazola P-J, Petit F, et al. Hybrid Fabrication of Zirconia Parts with Smooth Surface Texture and Tight Tolerances. Journal of Composites Science. 2024; 8(7):233. https://doi.org/10.3390/jcs8070233

Chicago/Turabian Style

Spitaels, Laurent, Valentin Dambly, Aiora Beobide Otaegi, Julien Bossu, Cathy Delmotte, Gregory Martic, Enrique Juste, Raoul Carrus, Pedro-José Arrazola, Fabrice Petit, and et al. 2024. "Hybrid Fabrication of Zirconia Parts with Smooth Surface Texture and Tight Tolerances" Journal of Composites Science 8, no. 7: 233. https://doi.org/10.3390/jcs8070233

APA Style

Spitaels, L., Dambly, V., Beobide Otaegi, A., Bossu, J., Delmotte, C., Martic, G., Juste, E., Carrus, R., Arrazola, P.-J., Petit, F., Rivière-Lorphèvre, E., & Ducobu, F. (2024). Hybrid Fabrication of Zirconia Parts with Smooth Surface Texture and Tight Tolerances. Journal of Composites Science, 8(7), 233. https://doi.org/10.3390/jcs8070233

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