Utilization of Generative Design Tools in Designing Components Necessary for 3D Printing Done by a Robot

Pollák, Martin; Töröková, Monika; Kočiško, Marek

doi:10.18421/tem93-05

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…In fact, some studies point that ABS gives off fumes when it leaves the extrusion head at its melting temperature. [9,10] ABS is a material mainly used for plastics 3D printing within FDM (Fused Deposition modelling) or FFF (Fused Filament Fabrication) techniques. Material comes in the way of a long filament wrapped around a spool.…”

Section: Methodsmentioning

confidence: 99%

Influence of the material volume of a lattice structure on bending properties

et al. 2021

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The article deals with the experimental investigation of the influence of material volume of a lattice structure on bending stress. FDM (Fused Deposition modelling) technique and ABS (Acrylonitrile Butadiene Styrene) material were selected for the samples production. Three types of samples with the same simple lattice structure and the same size of a basic cell 5 mm, but differ in a material volume ratio, were analysed experimentally. Minimally six pieces of the samples of each volume ratio were produced and tested using the ZWICK 1456 testing machine at an ambient temperature of 22 °C and at a relative humidity of 60 % according to the standard EN ISO 604. The stress-strain diagrams have been plotted and the values of maximum stresses have been tabled. The measured data were statistically processed, and average values of bending stresses were calculated. Based on the results the behaviour of the structure has been mathematically described, while the results showed that the dependency has an exponential trend.

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Section: Methodsmentioning

confidence: 99%

Influence of the material volume of a lattice structure on bending properties

et al. 2021

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“…The tested pressure plates in Figure 1b,c were redesigned using the composite materials that were attached to the original steel pressure plate, PP_0, with dimensions 130 × 20 × 1 mm (length × width × thickness) and 2 holes, 5 mm in diameter. technology has its own problems that need to be overcome, such as determining the material properties of components printed in this way [17], the influence of configuration parameters [18,19], and specific design for 3D printing [19].…”

Section: Components and Materialsmentioning

confidence: 99%

“…Meanwhile, the problem of manufacturability of these structures arises, and 3D printing becomes a successful technology in this regard. However, even 3D printing as a "boom" technology has its own problems that need to be overcome, such as determining the material properties of components printed in this way [17], the influence of configuration parameters [18,19], and specific design for 3D printing [19].…”

Section: Introductionmentioning

confidence: 99%

Torsional Vibrations in the Resonance of High-Speed Rotor Bearings Reduced by Dynamic Properties of Carbon Fiber Polymer Composites

2023

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The present study deals with the harmful torsional resonance vibrations of textile rotor bearings, the amplitudes of which are reduced mainly by the use of high-capacity damping materials, characterized by an internal hierarchical structure and macroshape, added into the machine mechanical system. The additional materials are polymer matrix composites reinforced either by carbon nanofibers or carbon chopped microfibers and either aramid or carbon continuous fibers. The macroshape is based on a honeycomb with internal cavities. Torsional vibrations arise in mechanical systems as a result of fluctuations in the low-level pressing load of the flat belt driving the rotor-bearing pin and the changing of kinematic conditions within it, which, in the resonance area, leads to cage slip and unwanted impulsive torsional vibrations. Moreover, this occurs during high-frequency performance at around 2100 Hz, i.e., 126,000 min−1. The condition, before the redesign, was characterized by significantly reduced textile rotor-bearing life due to significant impulse torsional vibrations in the resonance area. The study showed a significant reduction in average and maximum torsional amplitudes in the resonance area by 33% and 43%, respectively. Furthermore, the paper provides visualization of the propagation of a stress wave at the microscale obtained by the explicit finite element method to show the dispersion of the wave and the fibers as one of the sources of high damping.

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“…They began to be artificially produced at the beginning of the 20th century when the first commercial product was a rubber sponge. Subsequently, the expansion of the production of cellular bodies from polymers began, and nowadays, cellular bodies are mainly used as thermal insulation, packaging, and protective materials, but also as construction materials mainly due to their strong ability to absorb dynamic shocks, also to absorb adverse sound effects [ 1 , 2 , 3 ]. Their mechanical properties are not negligible due to their weight, which makes them an ideal material suitable for use in the space, aviation, or automotive industries [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Crosshead Speed and Volume Ratio on Compressive Mechanical Properties of Mono- and Double-Gyroid Structures Made of Inconel 718

et al. 2023

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The current development of additive technologies brings not only new possibilities but also new challenges. One of them is the use of regular cellular materials in various components and constructions so that they fully utilize the potential of porous structures and their advantages related to weight reduction and material-saving while maintaining the required safety and operational reliability of devices containing such components. It is therefore very important to know the properties of such materials and their behavior under different types of loads. The article deals with the investigation of the mechanical properties of porous structures made by the Direct Metal Laser Sintering (DMLS) of Inconel 718. Two types of basic cell topology, mono-structure Gyroid (G) and double-structure Gyroid + Gyroid (GG), with material volume ratios of 10, 15 and 20 %, were studied within our research to compare their properties under quasi-static compressive loading. The testing procedure was performed at ambient temperature with a servo-hydraulic testing machine at three different crosshead testing speeds. The recorded data were processed, while the stress–strain curves were plotted, and Young’s modulus, the yield strength Re0.2, and the stress at the first peak of the local maximum σLocMax were identified. The results showed the best behavior under compression load among the studied structures displayed by mono-structure Gyroid at 10 %. At the same time, it can be concluded that the wall thickness of the structure plays an important role in the compressive properties but on the other hand, crosshead speed doesn´t influence results significantly.

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Utilization of Generative Design Tools in Designing Components Necessary for 3D Printing Done by a Robot

Cited by 7 publications

References 10 publications

Influence of the material volume of a lattice structure on bending properties

Influence of the material volume of a lattice structure on bending properties

Torsional Vibrations in the Resonance of High-Speed Rotor Bearings Reduced by Dynamic Properties of Carbon Fiber Polymer Composites

Effect of Crosshead Speed and Volume Ratio on Compressive Mechanical Properties of Mono- and Double-Gyroid Structures Made of Inconel 718

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