Evaluation of additive manufacturing of sand cores in terms of the resulting surface roughness
Martina Gawronová,
Petr Lichý,
Ivana Kroupová,
Tomáš Obzina,
Jaroslav Beňo,
Isabel Nguyenová,
Václav Merta,
Jan Jezierski,
Filip Radkovský
Affiliations
Martina Gawronová
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic; Corresponding author.
Petr Lichý
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic
Ivana Kroupová
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic
Tomáš Obzina
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic
Jaroslav Beňo
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic
Isabel Nguyenová
Brembo Czech, S. R. o., Na Rovince 875, 720 00 Ostrava, Czech Republic
Václav Merta
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic
Jan Jezierski
Department of Foundry Engineering, Silesian University of Technology, Faculty of Mechanical Engineering, Ul. Towarova 7, 44-100 Gliwice, Poland
Filip Radkovský
Department of Metallurgical Technologies, VSB-Technical University of Ostrava, Faculty of Materials Science and Technology, 17. Listopadu 2172/15, 708 00 Ostrava, Czech Republic
Obtaining a good surface finish on casting is challenging and depends on the dimension of the sand particles and the processing method of the mold. Evolving modern trends in mould and core production as a binder jetting technology is an option and it is more than desirable to evaluate and remove any possible negative effects. The aim of this study is to compare the influence of furan no-bake technology and 3D printing method on the surface quality of cores and cavities formed in aluminium alloy castings. In addition to the sieve analysis and mechanical properties of the moulding mixtures, the roughness (Ra, Rz) of the cores and resulting casting surfaces of individual samples were compared in this study.
