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.

Brembo Czech S R o Na Rovince 875 720 00 Ostrava Czech Republic

Department of Foundry Engineering Silesian University of Technology Faculty of Mechanical Engineering Ul Towarova 7 44 100 Gliwice Poland

Department of Metallurgical Technologies VSB Technical University of Ostrava Faculty of Materials Science and Technology 17 Listopadu 2172 15 708 00 Ostrava Czech Republic

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