Research on Porous Ceramic 3D Printing Process Based on Laminated Template Method

Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019) Pub Date : 2019-11-01 DOI:10.2991/pntim-19.2019.48

Chen Shihao, Chengxu Hua, Zhang Geng, Zhang Qishuai

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Abstract

This paper proposes a new 3D printing lamination process to prepare porous ceramics with tight bonding between layers. The ceramic slurry is prepared by mixing alumina powder, organic binder and deionized water, nylon mesh cloth is used as organic template, scraper is used to scrape the ceramic slurry into the organic template, and the organic template layer is dried and laser scanned to obtain a single The green layer is obtained by laminating the layers and then sintering the ceramic body to obtain a porous ceramic. The results show that the compressive strength of porous ceramics prepared by this method can reach 43.12Mpa, the tensile strength between layers can reach 2.2Mpa, the diameter of ceramic through-hole is 70μm. The pore size and pore spacing of the ceramic green body processed by the process can be controlled, and the adhesion of adjacent layers of the ceramic body is improved, thereby improving the compressive strength of the ceramic material. Keywords-Laminate Manufacturing; Organic Template; Porous Ceramic; Material Properties

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基于层压模板法的多孔陶瓷3D打印工艺研究

本文提出了一种新的3D打印层压工艺，以制备层间紧密结合的多孔陶瓷。将氧化铝粉、有机粘结剂和去离子水混合制备陶瓷浆料，用尼龙网布作为有机模板，用刮板将陶瓷浆料刮入有机模板中，将有机模板层进行干燥，激光扫描得到单一的绿色层，通过层叠得到绿色层，然后将陶瓷体烧结得到多孔陶瓷。结果表明:该方法制备的多孔陶瓷抗压强度可达43.12Mpa，层间抗拉强度可达2.2Mpa，陶瓷通孔直径为70μm;通过该工艺加工的陶瓷坯体的孔径和孔间距可以得到控制，提高了陶瓷坯体相邻层的附着力，从而提高了陶瓷材料的抗压强度。Keywords-Laminate制造;有机模板;多孔陶瓷;材料特性

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Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)

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