Przybyła Szymon, Kwiatkowski Maciej, Kwiatkowski Michał, Hebda Marek
Faculty of Materials Engineering and Physics, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland.
Createc Sp. z o.o., E. Kwiatkowskiego 9, 37-450 Stalowa Wola, Poland.
Materials (Basel). 2024 Sep 17;17(18):4560. doi: 10.3390/ma17184560.
This article presents a procedure for selecting optimal ceramic paste formulations dedicated to the 3D printing process using robocasting technology. This study investigated pastes with varying ceramic powder particle sizes and different proportions of additives, such as ceramic microspheres and nutshells. This selection process allowed for the classification of ceramic mixtures into those suitable and unsuitable for this additive manufacturing technique. Subsequently, the viscosity of the pastes was measured, and extrudability tests were performed to determine the force required for extrusion and evaluate the quality of the extruded material. In the final stage, the setting time of the ceramic pastes was assessed to establish the drying time of the printed elements. It was found that the length of the extruded band of ceramic paste was inversely proportional to the Al₂O₃ content. Moreover, the extrusion force for samples with varying ceramic powder particle sizes (MG1-MG5) ranged from 133 to 166 N, compared to 77 N for the base sample (BM1). The obtained results enable further development in robocasting additive technology, including the development of a rapid and effective method for validating ceramic pastes used in this process.
本文介绍了一种使用机器人铸造技术选择适用于3D打印工艺的最佳陶瓷浆料配方的程序。本研究调查了具有不同陶瓷粉末粒径和不同添加剂比例（如陶瓷微球和坚果壳）的浆料。这种选择过程能够将陶瓷混合物分类为适合和不适合这种增材制造技术的类型。随后，测量了浆料的粘度，并进行了挤出性测试，以确定挤出所需的力并评估挤出材料的质量。在最后阶段，评估了陶瓷浆料的凝固时间，以确定打印元件的干燥时间。发现陶瓷浆料挤出带的长度与Al₂O₃含量成反比。此外，不同陶瓷粉末粒径（MG1 - MG5）样品的挤压力范围为133至166 N，而基础样品（BM1）的挤压力为77 N。所得结果有助于机器人铸造增材技术的进一步发展，包括开发一种快速有效的方法来验证该工艺中使用的陶瓷浆料。
