An investigation to study the combined effect of different infill pattern and infill density on the impact strength of 3D printed polylactic acid parts

Mishra, Pradeep Kumar; Senthil, P.; Adarsh, S. P.; Anoop, M. S.

doi:10.1016/j.coco.2020.100605

Cited by 90 publications

(34 citation statements)

References 19 publications

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“…The results showed that the percentage of 10 to 20% is the optimum infill for maximizing the stiffness-to-mass, but it is recommended to use a higher infill to avoid the drop off in flexural rigidity. Mishra et al [ 20 ] researched the effect of different combinations of infill densities and infill patterns on the absorbed energy of the PLA 3D-printed samples. The results concluded that an 85% infill density for each infill pattern demonstrated the highest energy absorption.…”

Section: Introductionmentioning

confidence: 99%

Infill Density Influence on Mechanical and Thermal Properties of Short Carbon Fiber-Reinforced Polyamide Composites Manufactured by FFF Process

et al. 2022

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In three-dimensional (3D) printing, one of the main parameters influencing the properties of 3D-printed materials is the infill density (ID). This paper presents the influence of ID on the microstructure, mechanical, and thermal properties of carbon fiber-reinforced composites, commercially available, manufactured by the Fused Filament Fabrication (FFF) process. The samples were manufactured using FFF by varying the infill density (25%, 50%, 75%, and 100%) and were subjected to tensile tests, three-point bending, and thermal analyses by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA). It was shown that the samples with 100% ID had the highest values of both tensile, 90.8 MPa, and flexural strengths, 114 MPa, while those with 25% ID had the lowest values of 56.4 MPa and 62.2 MPa, respectively. For samples with infill densities of 25% and 50%, the differences between the maximum tensile and flexural strengths were small; therefore, if the operating conditions of the components allow, a 25% infill density could be used instead of 50%. After DSC analysis, it was found that the variation in the ID percentage determined the change in the glass transition temperature from 49.6 °C, for the samples with 25% ID, to 32.9 °C, for those with 100% ID. TGA results showed that the samples with IDs of 75% and 100% recorded lower temperatures of onset degradation (approximately 344.75 °C) than those with infill densities of 25% and 50% (348.5 °C, and 349.6 °C, respectively).

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Section: Introductionmentioning

confidence: 99%

Infill Density Influence on Mechanical and Thermal Properties of Short Carbon Fiber-Reinforced Polyamide Composites Manufactured by FFF Process

et al. 2022

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“…In the earlier stage of FDM, the printing potential was limited by a small selection of thermoplastic filament materials [ 61 ]. Fortunately, with an increasing variety of filament materials offering a wide range of physical, mechanical, and electronic properties, FDM is now highly compatible with a wider range of materials, including acrylonitrile butadiene styrene (ABS) [ 62 , 63 , 64 ], polycaprolactone (PCL) [ 65 , 66 , 67 , 68 ], polylactic acid (PLA) [ 69 , 70 , 71 ], nylon [ 72 , 73 , 74 ], polypropylene (PP) [ 75 , 76 , 77 ], thermoplastic polyurethanes (TPU) [ 78 , 79 ], polyvinyl alcohol (PVA) [ 80 , 81 ], high impact polystyrene (HIPS) [ 82 , 83 ], and composite filaments [ 84 ]. Therefore, multi-material 3D printing using FDM has drawn growing interest in recent years.…”

Section: Systematic Review Of Current Researchmentioning

confidence: 99%

Scientometric Analysis and Systematic Review of Multi-Material Additive Manufacturing of Polymers

et al. 2021

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Multi-material additive manufacturing of polymers has experienced a remarkable increase in interest over the last 20 years. This technology can rapidly design and directly fabricate three-dimensional (3D) parts with multiple materials without complicating manufacturing processes. This research aims to obtain a comprehensive and in-depth understanding of the current state of research and reveal challenges and opportunities for future research in the area. To achieve the goal, this study conducts a scientometric analysis and a systematic review of the global research published from 2000 to 2021 on multi-material additive manufacturing of polymers. In the scientometric analysis, a total of 2512 journal papers from the Scopus database were analyzed by evaluating the number of publications, literature coupling, keyword co-occurrence, authorship, and countries/regions activities. By doing so, the main research frame, articles, and topics of this research field were quantitatively determined. Subsequently, an in-depth systematic review is proposed to provide insight into recent advances in multi-material additive manufacturing of polymers in the aspect of technologies and applications, respectively. From the scientometric analysis, a heavy bias was found towards studying materials in this field but also a lack of focus on developing technologies. The future trend is proposed by the systematic review and is discussed in the directions of interfacial bonding strength, printing efficiency, and microscale/nanoscale multi-material 3D printing. This study contributes by providing knowledge for practitioners and researchers to understand the state of the art of multi-material additive manufacturing of polymers and expose its research needs, which can serve both academia and industry.

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“…Természetesen szép számmal akadnak olyan publikációk is, amelyek valamely paraméter ütőmunkára gyakorolt hatásával foglalkoznak. Azonban fontos kiemelni, hogy ezen publikációk nagy többsége a 3D nyomtatási paraméterek ütőmunkára gyakorolt hatását hornyolt próbatestek esetében vizsgálta, mivel a feszültség gyűjtő hely jelenléte az ütőmunka drasztikus csökkenését idézi elő (Mishra et al, 2021). Számos publikáció foglalkozott a nyomtatás során alkalmazott kitöltés, kitöltési minta, nyomtatási sebesség, nyomtatási hőmérséklet, nyomtatási rétegvastagság és egyéb paraméterek mechanikai tulajdonságokra gyakorolt hatásával (Lennert-Sárosi, 2021;Wang et al, 2017).…”

Section: Bevezetésunclassified

3D nyomtatásnál alkalmazható kitöltési mintázatok hatása az ütőmunkára és annak szórására

Lennert

Sárosi

2021

JTGF

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Ezen tanulmány célja, hogy megvizsgálja az FDM 3D nyomtatásnál gyakran alkalmazott Cura programban található különböző kitöltési mintázatok ütőmunkára gyakorolt UNI EN ISO 180 szabványú hornyolatlan PLA próbatestek segítségével. Mivel az említett programban több, mint 10 féle különböző kialakítású kitöltésből választhatunk, így mind a hobbi célú mind pedig az ipari felhasználók számára kulcsfontosságú kérdés, hogy az egyes kitöltések esetében az elkészülő alkatrész milyen mechanikai tulajdonságokat produkál. Emellett fontos megállapítani, hogy létezik-e olyan mértékű különbség az egyes kitöltések által biztosított mechanikai tulajdonságok között, amely már esetlegesen veszélyezteti az egyes alkatrészek használhatóságát. A tanulmányban fontos szerepet kap annak megállapítása, hogy az ütőmunka szempontjából melyek a legkedvezőbb és legkedvezőtlenebb kitöltési mintázatok.

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An investigation to study the combined effect of different infill pattern and infill density on the impact strength of 3D printed polylactic acid parts

Cited by 90 publications

References 19 publications

Infill Density Influence on Mechanical and Thermal Properties of Short Carbon Fiber-Reinforced Polyamide Composites Manufactured by FFF Process

Infill Density Influence on Mechanical and Thermal Properties of Short Carbon Fiber-Reinforced Polyamide Composites Manufactured by FFF Process

Scientometric Analysis and Systematic Review of Multi-Material Additive Manufacturing of Polymers

3D nyomtatásnál alkalmazható kitöltési mintázatok hatása az ütőmunkára és annak szórására

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