Examples of 3d technologies for the production of hardware and polymer patterns

Processy litʹâ, 2021, Tom 146, №4, p.48-54

Abstract

Received 13.09.2021

UDK 681.3 / 621.74 / 339.97

The article gives examples of 3D printing (additive manufacturing, AM) of metal products and production trusses that have the ability to print foundry patterns. 3D printing perfectly copes with small-scale production and will increasingly be used in casting processes for the manufacture of patterns, especially disposable for precision metal casting. Existing farms of AM enterprises will serve as examples for the organization of future centralized productions, where foundries can order polymer patterns or even sand molds, or examples of AM sites as units of foundries. Recently, the popularity of photopolymer 3D printers, which print with high performance on the technology of forming a pattern of liquid photopolymer. Foundry and metallurgical processes are of course present in the AB of metal products, which cannot do without surfacing or fusion of layers or particles of metal, and AB is increasingly present in information topics and research descriptions of industry foundry journals and websites. Together with AM metal products, 3D printing of pattern-forming equipment will increasingly simplify the logistics of deliveries, bringing metal or polymer parts closer to the place of assembly of final products, their repair, modernization or production of metal products by forming equipment, including foundry. Fast AM opens up prospects for expanding opportunities both in product geometry and reducing many times (compared to traditional, obsolete production) the duration of technological training and its costs. Additive technologies make the process of topological optimization of structures the most efficient, allowing to produce lightweight structures, which in some cases resemble forms of natural origin. In general, the development of AB leads to the fact that more and more things and processes of the material world will appear through “production as service”.