Hardness, friction and wear characteristics of 3D-printed PLA polymer

Hervan, Sahar Zhiani; Altınkaynak, Atakan; Parlar, Zeynep

doi:10.1177/1350650120966407

Cited by 56 publications

(27 citation statements)

References 20 publications

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“…While the print orientation contributes to the overall wear rate, the wear rate is also dependent on the material itself since PLA is more brittle than ABS. For PLA, the wear rates observed during the run-in process are similar to other efforts with PLA [23], [34]. However, the relatively short sliding lengths capture only the transient responses and obscure the more stable systems dynamics demonstrated here.…”

Section: Volume Loss and Wear Ratesupporting

confidence: 77%

Orientation controls tribological performance of 3D-printed model thermoplastics

Mahmood

Guo

Sterling

et al. 2022

Preprint

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Additive manufacturing is rapidly growing in popularity due to its capability to produce parts with customized mechanical properties. Recent studies show that mechanical properties can be altered in a controlled manner by adjusting the relationship between build orientation and the applied loading from the service. In this work, the effect of build orientation on the tribological properties of 3D printed PLA – Polylactic acid and ABS- Acrylonitrile butadiene styrene is investigated. PLA and ABS samples are printed using material extrusion with three different build orientations. Tribological results show that variation in build direction relative to the sliding direction leads to anisotropic wear properties. The best wear properties are achieved when the layers are oriented orthogonally to the sliding direction. The coefficient of friction remains mostly unaffected by the build orientation. PLA samples demonstrate significantly better tribological properties compared to ABS. Varying the sliding speed between the interacting surfaces also affects the wear properties of both PLA and ABS. The results suggest that optimizing the build orientation with respect to service loading can improve the wear performance of additively manufactured thermoplastics. This presents an additional paradigm when designing additively manufactured parts potentially for functionally graded materials.

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Section: Volume Loss and Wear Ratesupporting

confidence: 77%

Orientation controls tribological performance of 3D-printed model thermoplastics

Mahmood

Guo

Sterling

et al. 2022

Preprint

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“…Various kinds of polymeric materials and a few kinds of alloys can be printed into 3D mechanical components. Hardness, friction, and wear properties of poly lactic acid (PLA) polymer printed using fused deposition modelling (FDM) method [586] and 3D printed acrylonitrile butadiene styrene polymer [587] were characterized respectively. Effects of 3D-printing parameters and surface roughness on tribological behaviors were revealed.…”

Section: D Printed Materials and Sintered Materialsmentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

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“…PLA is a thermoplastic polymer produced from renewable natural sources such as corn starch, sugar cane or sugar beet, has a glass transition temperature between 50°C and 80°C and a melting temperature of around 180°C. PLA has been investigated in many studies, in terms of mechanical (Azadi et al , 2021; Ćwikła et al , 2017; Dou et al , 2021; Gonabadi et al , 2020; El Magri et al , 2021; Zhiani Hervan et al , 2020), biological (Gremare et al , 2018; Patrício et al , 2013), physical (Farah et al , 2016; Sedničková et al , 2018) and chemical (Ahmed and Varshney, 2011; Carrasco et al , 2010) properties. Because the mechanical properties are related to our work, studies on the mechanical characteristics of PLA structures were investigated rather than others.…”

Section: Introductionmentioning

confidence: 99%

“…This process carries on until the structure built, as designed prior to production. Polymers such as polylactic acid (PLA) (Azadi et al , 2021; Gonabadi et al , 2020; El Magri et al , 2021; Zhiani Hervan et al , 2020), polycarbonate, poly-caprolactone (Huang et al , 2020a), actylonitrile butadiene styrene (Azadi et al , 2021) and composite materials with polymers (Huang et al , 2020b; El Magri et al , 2021) can be used to produce desired parts with the FFF system in different fields, as mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Effects of 3D-printed PLA material with different filling densities on coefficient of friction performance

Şirin

Aslan

Akıncıoğlu

2022

RPJ

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Purpose The purpose of this study is the investigation of the friction performance of 3D-printed polylactic acid (PLA) at different infill densities. Design/methodology/approach PLA samples were printed with fused filament fabrication (FFF). Friction performance test of PLA samples were performed under 18 N load at 20 min, 40 min and 60 min using a pin-on-disc tester. Diameter deviation, hardness of 3D-printed PLA, weight variation, coefficient of friction, temperature and wear images were chosen as performance criteria. Findings The hardness values of the samples with 30%, 50% and 70% infill density were determined as 93.9, 99.93 and 102.67 Shore D, respectively. The friction of coefficient values obtained in these samples at 20 min, 40 min and 60 min were measured as 0.5737, 0.4454 and 0.3824, respectively. The least deformation occurred in the sample with 50% occupancy rate and during the test period of 20 min. Practical implications The aim of this study was to determine the best friction performance of 3D-printed biodegradable and biocompatible PLA with different infill densities. Originality/value In the literature, several studies can be found on the mechanical characteristics of 3D-printed parts produced with PLA. However, investigations on the wear characterisation of these parts are very limited. In this regard, the friction coefficient results obtained from different infill density of 3D-printed PLA used in this study will significantly contribute to the literature.

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Hardness, friction and wear characteristics of 3D-printed PLA polymer

Cited by 56 publications

References 20 publications

Orientation controls tribological performance of 3D-printed model thermoplastics

Orientation controls tribological performance of 3D-printed model thermoplastics

A review of advances in tribology in 2020–2021

Effects of 3D-printed PLA material with different filling densities on coefficient of friction performance

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