Про оптимізацію литих конструкцій та зв’язувальних композицій для 3D-друку ливарних форм

• Дата: 2023
• Автор: Дорошенко, В. С.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: National Academy of Sciences of Ukraine, Physical-Technological Institute of Metals and Alloys of NAS of Ukraine 2023
• Теми: адитивне виробництво; 3D-технології; піщана форма; формовка; холоднотвердна суміш; біонічні конструкції; оптимізація конструкцій
• Онлайн доступ: https://plit-periodical.org.ua/index.php/plit/article/view/about-optimization-cast-constructions-and-binding-compositions-3
• Назва журналу: Casting Processes

Physico-Technological Institute of Metals and Alloys of the NAS of Ukraine (Kyiv, Ukraine) Received 05.10.2021 UDK 621.744 Additive or 3D-technologies today are increasingly used in foundry production for layer printing of both foundry models and molds or metal castings. The so-called “silent revolution” of 3D technologies shortens the time of introduction in the production of a new nomenclature of Lithuanian without paper documents from digital files by computer programs. 3D-printing technologies are able to eliminate bottlenecks in supply chains, increasing the level of localization of production. But to realize this potential, developers of 3D-printing solutions must increase the speed and efficiency of production based on this technology; create a service network; focus on “soft” integration of solutions for 3D-printing. The described examples of cast bionic structures show significant opportunities for computer optimization of casting structures in combination with 3D-printing of molds. Criticism of additive technologies shows the need to reduce their cost, in particular, through the use of inexpensive molding materials, preferably with inorganic binders. For this purpose, adaptation for additive molding of long-used mixtures of traditional molding is proposed. Compositions of mixtures for 3D-printing have a wide range of regulation and a basis for creation of inexpensive mixes on analogs applied today in traditional foundries. Complementing the known methods of hardening the molding mixture by additive molding methods using chemically fast-setting binders will use the potential of HTS technology, experience in implementing cohesive-adhesive binder mechanism to strengthen sand mixtures in the conditions of fast thin-layer molding. 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