Development of a 3D model to predict curing dimensions and conversion rates of curable ceramic systems during stereolithography 3D printing process |
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| Affiliation: | 1. Nano & Micro Additive Manufacturing of Polymers and Composite Materials Laboratory ‘‘3D LAB’’, Advanced Functional Materials & Nanotechnology Group, Centro de Investigación en Materiales Avanzados S.C. (CIMAV-Subsede Monterrey), Av. Alianza Norte Monterrey-Aeropuerto Km 10, PIIT, Apodaca C.P. 66628, Autopista Nuevo León, Mexico;2. Materials Chemistry Department, Centro de Investigación en Materiales Avanzados S.C. (CIMAV-Chihuahua), Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31136 Chihuahua, Chih, Mexico;1. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. College of Microtechnology & Nanotechnology, Qingdao University, Qingdao 266071, China;3. School of Material Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China;4. Jiaxing CeramPlus Technology Co., Ltd., Jiaxing 314100, China;1. State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China;2. Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, Liaoning, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;4. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110169, Liaoning, China;5. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, Liaoning, China;1. SPCTS, Univ. Limoges, CNRS, UMR 7315, F-87000 Limoges, France;2. CIRIMAT, Univ. Toulouse, CNRS, UPS, F-31062 Toulouse, France;1. Department of Mechanical Engineering, São Carlos School of Engineering, University of São Paulo, Trabalhador São-carlense, 400, São Carlos 13566-590, Brazil;2. Federal Institute of Education, Science and Technology of São Paulo - IFSP, Primeiro de Maio, 500, Itaquaquecetuba, SP, Brazil;3. Materials and Engineering Research Institute, Sheffield Hallam University, Sheffield S1 1WB, UK |
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| Abstract: | To meet industry’s expectations for manufacturing ceramic parts by stereolithography, a better comprehension of the process, in particular laser scattering through the ceramic slurry is mandatory. This knowledge makes it possible to define adapted printing conditions to control the dimensions, homogeneity of the conversion and mechanical properties of the green parts, in order to achieve better resolutions and optimize the properties of sintered parts. This approach is focused on the development of a 3D polymerization modeling for stereolithography process able to predict curing and associated thermal phenomena. First, a design of experiments is carried out to identify material-dependent parameters, calibrate and validate the model, then able to predict monomer conversion rates and dimensions after curing depending on manufacturing parameters. Finally, temperature variation and exposure homogeneity have been evaluated. These results will allow, in future studies, to interpret the differences of deformations and mechanical properties of green parts. |
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| Keywords: | Stereolithography Scattering Dimensional accuracy Conversion rate Simulation model |
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