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Article

The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology

1
Institute of Robots and Machines Design, Faculty of Mechanical Engineering, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, Poland
2
Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, 166 29 Prague 6-Dejvice, Czech Republic
*
Author to whom correspondence should be addressed.
Materials 2020, 13(4), 903; https://doi.org/10.3390/ma13040903
Received: 29 January 2020 / Revised: 12 February 2020 / Accepted: 15 February 2020 / Published: 18 February 2020
(This article belongs to the Special Issue Materials Investigations in Mechanical Systems)
The paper is focused on the examination of the internal quality of joints created in a multi-material additive manufacturing process. The main part of the work focuses on experimental production and non-destructive testing of restrained joints of modified PLA (polylactic acid) and ABS (Acrylonitrile butadiene styrene) three-dimensional (3D)-printed on RepRap 3D device that works on the “open source” principle. The article presents the outcomes of a non-destructive materials test in the form of the data from the Laser Amplified Ultrasonography, microscopic observations of the joints area and tensile tests of the specially designed samples. The samples with designed joints were additively manufactured of two materials: Specially blended PLA (Market name—PLA Tough) and conventionally made ABS. The tests are mainly focused on the determination of the quality of material connection in the joints area. Based on the results obtained, the samples made of two materials were compared in the end to establish which produced material joint is stronger and have a lower amount of defects. View Full-Text
Keywords: Additive manufacturing; FFF technology; laser amplified ultrasonography; tensile testing Additive manufacturing; FFF technology; laser amplified ultrasonography; tensile testing
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MDPI and ACS Style

Kluczyński, J.; Śnieżek, L.; Kravcov, A.; Grzelak, K.; Svoboda, P.; Szachogłuchowicz, I.; Franek, O.; Morozov, N.; Torzewski, J.; Kubeček, P. The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology. Materials 2020, 13, 903. https://doi.org/10.3390/ma13040903

AMA Style

Kluczyński J, Śnieżek L, Kravcov A, Grzelak K, Svoboda P, Szachogłuchowicz I, Franek O, Morozov N, Torzewski J, Kubeček P. The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology. Materials. 2020; 13(4):903. https://doi.org/10.3390/ma13040903

Chicago/Turabian Style

Kluczyński, Janusz, Lucjan Śnieżek, Alexander Kravcov, Krzysztof Grzelak, Pavel Svoboda, Ireneusz Szachogłuchowicz, Ondřej Franek, Nikolaj Morozov, Janusz Torzewski, and Petr Kubeček. 2020. "The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology" Materials 13, no. 4: 903. https://doi.org/10.3390/ma13040903

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