FDM is an additive manufacturing technology that can be effectively used to make investment casting models. This method is considered economical in a single production, since it does not require the manufacturing of expensive equipment. However, the roughness of models surface made by FDM printing is significantly lower than wax models obtained by traditional way - using metal and elastic silicone molds, that ultimately affects the roughness of castings. In this work, was studied the use of FDM printing technology for materials: REC CAST, PVA and Wax3D from company the “Filamentarno!”, used in molds to obtain models, as well as a combined method for wax models production. FDM printing technology is especially suitable for producing models with internal channels and cavities through the use of water-soluble support materials.
The results of experimental studies to determine the relationship between arrangement of synthesized model on build platform of 3D printer ObjetEden 350 and mechanical properties of the model fabricated from FullCure 720 photopolymer material were described. During the study, measurements of hard-fabricated samples were made, and the strength and plastic properties of FullCure 720 photopolymer material while tensile test were analyzed.
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