Obtaining Casts of Aluminum Alloys by Foundry in Loose Molds Fabricated on Installations of Three-Dimensional Printing

摘要

Three-dimensional printing is used more and more often at Russian enterprises in preparing the production of cast articles for fabricating models and casting molds. A ZPrinter 310 Plus and a ZCast molding sand are used at the Moscow Institute of Steel and Alloys to obtain molds by this method in the production of pilot casts of aluminum and magnesium alloys. Because o fthe absence of reference data on the strength and heat-transfer properties of these mixtures, it is difficult to optimize the thickness of the mold wall during their design. In connection with this, the physical and production properties of the ZCast mixture were determined as applied to different conditions of formation of the mold wall before it was poured with the aluminum alloy. The results showed that the method of rapid prototyping the models and molds can be effectively used in foundry for obtaining casts of aluminum alloys, especially at the stage of preparing the production of cast articles.