Laser Machining of Zirconia Green Compacts to Produce Cavities and Blocks: Parametric Optimization and Patterning

first_page settings Order Article Reprints Font Type: Arial Georgia Verdana Font Size: Aa Aa Aa Line Spacing:    Column Width:    Background: Open AccessAbstract Laser Machining of Zirconia Green Compacts to Produce Cavities and Blocks: Parametric Optimization and Patterning † by Vipin Richhariya 1,*, Bruno Guimarães 1, Georgina Miranda 2 and Filipe Silva 1 1 Center for MicroElectroMechanical Systems (CMEMS-UMinho), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal 2 CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal * Author to whom correspondence should be addressed. † Presented at the Materiais 2022, Marinha Grande, Portugal, 10–13 April 2022. Mater. Proc. 2022, 8(1), 29; https://doi.org/10.3390/materproc2022008029 Published: 23 May 2022 (This article belongs to the Proceedings of MATERIAIS 2022) Download Download PDF Download PDF with Cover Download XML Download Epub Versions Notes Zirconia is a very popular material among implants and prosthesis, due to its antibacterial activity, corrosion resistance and hardness properties. For these purposes, zirconia is to be sintered beforehand to obtain good dimensional and geometrical accuracy and then machined. However, the machining of sintered zirconia has always been a troublesome proposition, attributable to its extreme hardness.The excellent properties of zirconia were applied in this study to the cutlery design. Nowadays, cutlery/flatware designs are constantly changing. However, for manufacturing, the traditional molding process remains widely popular, despite having huge limitations regarding aesthetic and design flexibility. In the present study, we explore a new horizon of cutlery design by patterning using laser surface modification. Blocks were laser machined from zirconia green compacts, which solved the machining problems associated with sintered zirconia, and then inserted into stainless-steel cutlery grooves to produce a novel aesthetical cutlery design.This study addresses the parametric optimization of laser parameters (power, scanning speed and number of passages) to produce cavities in zirconia green compacts. Material removal, depth of cut, geometry and surface roughness were taken as output variables. For the analyses, a full factorial design of experiments was adopted. Moreover, this study provides the optimum parameters for the laser machining of zirconia green compacts to produce blocks with accurate dimensions and geometries. After laser machining the zirconia blocks, sintering was performed to achieve the desired dimensions. Author ContributionsConceptualization, F.S.; Parametric Optimizations, patterning and experimentations, V.R., Results’ analyses, G.M.; Abstract writing and validation, V.R. and B.G. All authors have read and agreed to the published version of the manuscript.FundingThe project was funded by “Cutlnov-Development of new aesthetics for cutlery by new technologies” with the reference POCI-01-0247-FEDER-017828. The work is a joint venture of Cutlnov and CMEMS-UMinho.Institutional Review Board StatementNot applicable.Informed Consent StatementNot applicable.Data Availability StatementNot applicable.Conflicts of InterestThe authors declare no conflict of interest.Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Share and Cite MDPI and ACS Style Richhariya, V.; Guimarães, B.; Miranda, G.; Silva, F. Laser Machining of Zirconia Green Compacts to Produce Cavities and Blocks: Parametric Optimization and Patterning. Mater. Proc. 2022, 8, 29. https://doi.org/10.3390/materproc2022008029 AMA Style Richhariya V, Guimarães B, Miranda G, Silva F. Laser Machining of Zirconia Green Compacts to Produce Cavities and Blocks: Parametric Optimization and Patterning. Materials Proceedings. 2022; 8(1):29. https://doi.org/10.3390/materproc2022008029 Chicago/Turabian Style Richhariya, Vipin, Bruno Guimarães, Georgina Miranda, and Filipe Silva. 2022. "Laser Machining of Zirconia Green Compacts to Produce Cavities and Blocks: Parametric Optimization and Patterning" Materials Proceedings 8, no. 1: 29. https://doi.org/10.3390/materproc2022008029 Find Other Styles Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here. Article Metrics No No Article Access Statistics Multiple requests from the same IP address are counted as one view.