Kluczyński Janusz, Śnieżek Lucjan, Kravcov Alexander, Grzelak Krzysztof, Svoboda Pavel, Szachogłuchowicz Ireneusz, Franek Ondřej, Morozov Nikolaj, Torzewski Janusz, Kubeček Petr
Institute of Robots and Machines Design, Faculty of Mechanical Engineering, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, Poland.
Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7/2077, 166 29 Prague 6-Dejvice, Czech Republic.
Materials (Basel). 2020 Feb 18;13(4):903. doi: 10.3390/ma13040903.
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.
本文聚焦于对多材料增材制造过程中所形成接头内部质量的检测。工作的主要部分集中于在基于“开源”原理工作的RepRap 3D设备上对改性聚乳酸(PLA)和丙烯腈-丁二烯-苯乙烯共聚物(ABS)进行三维(3D)打印的约束接头的实验制作及无损检测。本文以激光放大超声检测数据、接头区域微观观察结果以及专门设计样品的拉伸试验结果等形式呈现了无损材料测试的成果。带有设计接头的样品由两种材料通过增材制造而成:特殊混合的PLA(商品名——PLA Tough)和传统制作的ABS。这些测试主要侧重于确定接头区域材料连接的质量。基于所获结果,最终对由两种材料制成的样品进行了比较,以确定哪种制作出的材料接头更强且缺陷数量更少。