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Dimensional-Shape Verification of a Selected Part of Machines Manufactured by Additive Techniques

Bernaczek Jacek, Budzik Grzegorz, Dziubek Tomasz, Przeszłowski Łukasz, Wójciak Kinga

Advances in Science and Technology. Research Journal

2023

Vol. 17, no 1

46--57

The publication covers the complex process of analyzing the accuracy of mapping models produced in AM (Additive Manufacturing) processes with a thermoplastic material – FFF (Fused Filament Fabrication) and polymerization of light-curing resin – PolyJet. The research was conducted with the use of an advanced optical measuring system – the GOM Atos 3D scanner. The part selected for the research in question was the water pump body as a representative example of an element with adequate dimensional and shape conditions (high degree of folding and geometric differentiation) allowing, based on the results of coordinate measurements determined in the research process, to define the potential area of application of AM models made of thermoplastic material and resin hardened with UV light. The performed tests showed the accuracy of individual AM methods at a level within the range declared by machine manufacturers. However, the PolyJet body is characterized by a much higher accuracy of the shape mapping compared to the FFF body. The dimensional accuracy is also higher for the resin model in relation to the thermoplastic model, which results primarily from the thickness of the elementary layer of the model material applied by the printing module defined for individual incremental processes – 16 μm for RGD 720 and 0.2 mm for ABS. Detailed elaboration and analysis of the research results are presented in this publication.

Recycling of ABS operating elements obtained from industry 3D printing machines

Marciniak Dawid, Czyżewski Piotr, Sykutera Dariusz, Bieliński Marek

Polimery

2019

T. 64, nr 11-12

803--810

The article presents new application of the material obtained from the recycling of acrylonitrilebutadiene-styrene (ABS) – the material acquired from operating parts of industry Dimension Elite 3D printer by Stratasys. The operating parts were used to prepare the regranulate and to produce filament, the latter of which was applied used in the FFF technology (Fused Filament Fabrication). Manufactured in the FFF technology, test specimens were used to determine the selected mechanical properties and to compare the obtained results with the properties characteristic of molded pieces made of ABS regranulate that were produced by injection molding. The paper presents results of tests performed on a filament, obtained from the ABS regranulate and indicates characteristic processing properties of that material. It also discusses beneficial processing parameters for injection molding (IM) and 3D printing (FFF). The study also presents selected results of tests of functional properties of ABS products in the FFF technology. The research results have allowed to assess the possibility of recycling of the operating parts of 3D printers in FFF.

Przedstawiono nowe zastosowanie materiału uzyskanego z recyklingu ABS (akrylonitryl-butadien-styren) pochodzącego z elementów eksploatacyjnych przemysłowych drukarek 3D Dimension Elite (Stratasys). Z elementów eksploatacyjnych przygotowano regranulat i wyprodukowano filament, który następnie zastosowano w technologii przyrostowego wytwarzania FFF (ang. Fused Filament Fabrication). Wytworzone w technologii FFF próbki posłużyły do oznaczenia wybranych właściwości mechanicznych oraz porównania ich z właściwościami charakteryzującymi wypraski z regranulatu ABS, uzyskane metodą wtryskiwania. Oceniano cechy filamentu otrzymanego z regranulatu ABS, wskazano także na charakterystyczne właściwości przetwórcze tego surowca. Określono korzystne pod względem wytrzymałości mechanicznej parametry procesów wytwarzania: wtryskiwania ciśnieniowego (IM) oraz drukowania 3D (FFF), wyznaczono też właściwości użytkowe wytworów z ABS, otrzymanych w technologii FFF. Wyniki badań pozwoliły na ocenę możliwości recyklingu zużytych elementów eksploatacyjnych przemysłowych drukarek 3D w technologii FFF.