Michał Jesiotr, Michał Tarnowski, Beata Kucharska, Dawid Myszka, Tadeusz WierzchońNICKEL LAYER DEPOSITION ON INVESTMENT CASTING POLYMER PATTERNSAbstractThe article presents a method of modification of ceramic mould surface on the boundary between lost-wax model - ceramics by using a layer of nickel on a disposable model made of a specified type of polymer e.g. polymethyl methacrylate (PMMA) and then applying the layers of a ceramic mould to such a model. Successive phases consist in removing the model from the ceramic shell so that the metallic layer remains in the mould. After annealing it will be possible to pour liquid metal of a specific melting point e.g. aluminium alloy, to a mould prepared in this way. This way it is possible to obtain a high quality casting surface, of certain roughness and lack of surface defects. The research hypothesis stated in the article is to design a metallic coating in a ceramic form to get better wettability with molten metal than when using conventional techniques of precision casting. Keywords: nickel layers, precision casting, casting models, polymeric materials, ![]() |