Additively Manufactured Parts Made of a Polymer Material Used for the Experimental Verification of a Component of a High-Speed Machine with an Optimised Geometry—Preliminary Research

Andrearczyk, Artur; Konieczny, Bartłomiej; Sokołowski, Jerzy

doi:10.3390/polym13010137

Cited by 9 publications

(7 citation statements)

References 43 publications

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“…It offers high accuracy of printed elements with complex shapes as the minimal thickness of the layer could be 16

m [ 29 ]. This method was developed for the production of microturbine components at the Institute of Fluid Flow Machinery, Polish Academy of Sciences (IMP PAN) [ 30 , 31 ]. During the printing process, either photocurable plastic resin or casting wax material (supporting material) is deposited layer-by-layer.…”

Section: Manufacturing Techniquementioning

confidence: 99%

Embedded Optical Fibre with Fibre Bragg Grating Influence on Additive Manufactured Polymeric Structure Durability

2022

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Additive manufacturing (AM) polymers are applied in many branches of the industry due to the possibility of fast and accurate production of elements with various and complex shapes. Fibre Bragg grating sensors (FBG) are widely applied in structural health monitoring (SHM) systems. The main objective of this research is to perform analyses of the influence of embedded FBG sensors on AM polymer elements’ durability. Two polymers (M3 X and M3 Crystal) with different mechanical properties were analysed. The tests were performed on samples with FBG sensors embedded in (different alignment) and attached to the surfaces of the elements. Firstly, the samples were exposed to elevated or sub-zero temperatures under stable relative humidity levels. The strain in the samples was measured using fibre Bragg grating (FBG) sensors. The achieved results allow us to determine the relationships between strain and temperature for both materials and the differences in their mechanical response to the thermal loading. Then, the samples were subjected to a tensile test. A comparison of the tensile strength values was performed for the samples without and with embedded FBG sensors. The samples after the tensile tests were compared, showing differences in the mechanisms of failures related to the polymers and the thermal treatment influence on the material internal structure. Additionally, strain values measured by the FBG sensors were compared to the strain values achieved from the testing machine showing a good agreement (especially for M3 X) and indicating the differences in the materials’ mechanical properties. The achieved results allow us to conclude there is a lack of influence of embedded FBG sensors on the mechanical durability of AM polymers.

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“…It offers high accuracy of printed elements with complex shapes as the minimal thickness of the layer could be 16

Section: Manufacturing Techniquementioning

confidence: 99%

Embedded Optical Fibre with Fibre Bragg Grating Influence on Additive Manufactured Polymeric Structure Durability

2022

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“…Given the vital role of materials used in rotary components fabrication, with respect to the production of the different components and working conditions, the selection and manufacture of materials have been among the most important thing [ 4 ]. In this regard, great progress has been made in the materials used for the fabrication of impellers.…”

Section: Materials Used For Fabrication Of Impellersmentioning

confidence: 99%

“…In different kinds of systems, in order to increase the efficiency of compressors and pumps and economic efficiency, polymers have been introduced for the fabrication of rotors [ 4 , 11 , 20 , 21 ]. Polymers defined as macromolecules consist of large numbers of smaller molecules, or repeating units, called monomers, which are formed chemically bonded.…”

Section: Materials Used For Fabrication Of Impellersmentioning

confidence: 99%

“…By rapidly rotating the impeller can force the working fluid by converting the velocity of the fluid to pressure [ 2 ]. Considering the use of impellers in different rotary machinery systems, they have played a vital role in various applications such as aerospace [ 3 ], automotive [ 4 ] and medical [ 5 ] applications. The improvement of a system’s efficiency by impellers has attracted attention in a lot of studies [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

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Toward Polymeric and Polymer Composites Impeller Fabrication

et al. 2021

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Impellers are referred to as a core component of turbomachinery. The use of impellers in various applications is considered an integral part of the industry. So, increased performance and the optimization of impellers have been the center of attention of a lot of studies. In this regard, studies have been focused on the improvement of the efficiency of rotary machines through aerodynamic optimization, using high-performance materials and suitable manufacturing processes. As such, the use of polymers and polymer composites due to their lower weight when compared to metals has been the focus of studies. On the other hand, methods of the manufacturing process for polymer and polymer composite impellers such as conventional impeller manufacturing, injection molding and additive manufacturing can offer higher economic efficiency than similar metal parts. In this study, polymeric and polymer composites impellers are discussed and conclusions are drawn according to the manufacturing methods. Studies have shown promising results for the replacement of polymers and polymer composites instead of metals with respect to a suitable temperature range. In general, polymers showed a good ability to fabricate the impellers, however in more difficult working conditions considering the need for a substance with higher physical and mechanical properties necessitates the use of composite polymers. However, in some applications, the use of these materials needs further research and development.

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“…Stoia et al studied the mode I fracture toughness of polyamide and alumide samples fabricated using selective laser sintering [13]. Lastly, Andreaczyk et al have developed a novel method for the experimental validation of numerically optimised turbomachinery components that are fabricated using AM [14].…”

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confidence: 99%