Determining the tribological properties of different 3D printing filaments

Mărieş, I; Vilău, Cristian; Pustan, Marius; Dudescu, Cristian; Crișan, Horea-George

doi:10.1088/1757-899x/724/1/012022

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Both the vials holder and the support base components are made of the same PLA material. In order to avoid the friction of the link j 1 and, consequently, increase the materials longevity [36], it is advisable to include a frictionless material on the support tower. The controlled room temperature where this system is applied guarantees that the PLA deformation does not occur.…”

Section: System 3d Modellingmentioning

confidence: 99%

Low-cost SARS-CoV-2 vaccine homogenization system for Pfizer-BioNTech covid-19 vials

Lima

Rocha

et al. 2021

IJRA

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The current SARS-CoV-2 pandemic has been affecting all sectors worldwide, and efforts have been targeting the enhancement of people’s health and labour conditions of collaborators belonging to healthcare institutions. The recent vaccines emerging against covid-19 are seen as a solution to address the problem that has already killed up to two million people. The preparation of the Pfizer-BioNTech covid-19 vaccine requires a specific manipulation before its administration. A correct homogenization with saline solution is needed and, therefore, a manual process with a predefined protocol should be accomplished. This action can endanger the operators’ ergonomics due to the repetitive movement of the process. This paper proposes a low-cost prototype incorporating an arduino based embedded system actuating a servomotor to perform an autonomous vials’ homogenization allowing to redirect these healthcare workers to other tasks. Moreover, a contactless start order process was implemented to avoid contact with the operator and, consequently, the contamination. The prototype was successfully tested and recognised, and is being applied during the preparation of the covid-19 vaccines at the hospital pharmacy of Centro Hospitalar de Vila Nova de Gaia/Espinho, E.P.E., Portugal. It can be easily replicated since the source files to assemble it are provided by the authors.

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Section: System 3d Modellingmentioning

confidence: 99%

Low-cost SARS-CoV-2 vaccine homogenization system for Pfizer-BioNTech covid-19 vials

Lima

Rocha

et al. 2021

IJRA

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“…Some studies determined the tribological behaviour of different 3D filaments in contact with a metallic disc. The research work of these studies was directed to identifying the most adequate 3D printing filament in order to construct different parts for the purpose of creating a 3D printed smart shoes sole [8].…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties of 3D Printed Polymers: PCL, ABS, PLA and Co Polyester

Ramadan¹,

Sabour²,

El-Shenawy³

2023

Tribol. Ind.

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3D printing is one of the most portentous technologies for the time being. Recently, 3D printing has progressed remarkably and is expected to proceed in numerous applications, such as automotive, medical, wind turbine, and aerospace applications. 3D printing technology opens the door to enhancing and optimizing several applications. Although of such advancement, there is still a lack of the tribological research investigations in this area. This work is devoted to studying the tribological properties of 3D printed polymers (ABS, PLA, Co-polyester, and PCL) for utilization in a wide range of applications, such as medical, automotive, and various tribological applications. The test specimens were printed using fused deposition modeling (FDM) technology. The tribological characteristics of 3D printed specimens were evaluated using a pin-on-disc tester. Vicker's hardness tester was used to determine the specimens' hardness. Scanning electron microscopy (SEM) with backscattering was used to examine the worn surfaces of samples. Based on the findings of the current investigation, it was discovered that 3D printing technology enhanced the bonding strength and wear resistance of the tested specimens. Furthermore, the 3D-printed polymers (ABS, PLA, Co-polyester, and PCL) produced varying friction coefficient (high and low) values at acceptable wear resistance making them suitable for a wide range of applications. The samples that were printed using PLA and co-polyester had the lowest coefficients of friction (0.3) while the samples that were printed using ABS and PCL had the greatest coefficients of friction (0.4) and (0.39) respectively.

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Functional testing of entirely additively manufactured two-component hydraulic rod seals made of TPU and NBR

Ebel,

Lankenau,

Sundermann

et al. 2024

Discov Mechanical Engineering

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The delivery time of expendable items can be quite high despite today’s sophisticated logistics and production systems. In the case of dynamic rod seals for hydraulic applications, this can last weeks or even months. A possible solution to avoid shutdowns can be the fast production of seals using additive manufacturing (AM), at least to use these parts until conventionally produced spare parts arrive. The research question addressed in this study is whether it is possible to produce functional parts in this way to avoid leakage. The paper starts with an introduction to the topic and introduces the materials and equipment used to conduct the study. The main part of this paper includes the documentation of the results of two series of functional tests conducted with five different thermoplastic materials. These tests showed that the research question can be answered in an affirmative way for tested pressures up to 15 MPa and a sliding distance of 320 m. However, the results show different behaviors of conventionally produced seals and those made using AM.

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Determining the tribological properties of different 3D printing filaments

Cited by 3 publications

References 4 publications

Low-cost SARS-CoV-2 vaccine homogenization system for Pfizer-BioNTech covid-19 vials

Low-cost SARS-CoV-2 vaccine homogenization system for Pfizer-BioNTech covid-19 vials

Tribological Properties of 3D Printed Polymers: PCL, ABS, PLA and Co Polyester

Functional testing of entirely additively manufactured two-component hydraulic rod seals made of TPU and NBR

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