Mechanism of ceramic slurry light scattering affecting contour accuracy and method of projection plane correction |
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| Affiliation: | 1. School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China;2. Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China;3. School of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing, 210000, China;4. School of Mechanical Engineering, Southeast University, Nanjing, 211189, China;5. Prismlab China Ltd., 200000, Shanghai, China;1. Key Lab. for New Type of Functional Materials in Hebei Province, School of Materials Science and Engineering, State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, 300132, Tianjin, China;2. AECC Sichuan Gas Turbine Establishment, Sichuan Province, Chengdu, 610500, China;1. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China;2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China;1. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an, 710072, PR China;2. Xi''an Xinyao Ceramic Composite Materials Co., Ltd., Xi''an, 710117, PR China;3. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, No.29 Jiangjun Ave., Nanjing, 211106, PR China;1. Department of Electronic Engineering, Huainan Union University, Huainan, PR China;2. Energy Storage Joint Research Center, School of Energy and Environment, Southeast University, No. 2 Si Pai Lou, Nanjing, 210096, PR China;3. Key Laboratory of Ferro and Piezoelectric Materials and Devices of Hubei Province, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei, 430062, PR China;4. Shenzhen Key Laboratory of Laser Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China;5. School of Electronic Engineering, Nanjing Xiaozhuang University, Nanjing, 211171, PR China;6. Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan;1. School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil;2. School of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, MG, Brazil;3. School of Technology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil;4. Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Sweden |
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| Abstract: | Digital light processing (DLP) is a relatively mature ceramic additive manufacturing technology widely applied in medical bone implantation, electronic communication, and other fields. However, the size error caused by the light scattering from the complex contour can seriously affect the precision and forming quality of the printed green body. This paper studied the scattering behavior of complex structure ceramics under different exposure energies through two structural parameters: exposure width and contour shape. A formula for excess cure width is presented. The formula will be then applied to simplify the machine learning algorithms. Finally, by inverse compensation for the complex contour, we optimized some pore structures and complex shapes to greatly improve the fidelity of the structure. |
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| Keywords: | Digital light processing Light scattering Complex contour Inverse compensation |
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