Mechanical Properties of FDM and SLA Low-cost 3-D Prints

Szykiedans, K.; Credo, W.

doi:10.1016/j.proeng.2016.01.207

Cited by 91 publications

(55 citation statements)

References 3 publications

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“…For effective and efficient manufacturing of the face shields presented in this study, fused deposition modeling (FDM) was preferred due to its increased printing capability and minimal post-processing requirements. By contrast, stereolithography (SLA) printers require uncured resin to be removed from the finished print using cleaning or washing procedures prior to additional light-curing [18,19]. While both printing techniques require support structures in non-supported areas, FDM-based techniques will generally require fewer support structures.…”

Section: Printing Techniquementioning

confidence: 99%

3-D Printed Protective Equipment during COVID-19 Pandemic

et al. 2020

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While the number of coronavirus cases from 2019 continues to grow, hospitals are reporting shortages of personal protective equipment (PPE) for frontline healthcare workers. Furthermore, PPE for the eyes and mouth, such as face shields, allow for additional protection when working with aerosols. 3-D printing enables the easy and rapid production of lightweight plastic frameworks based on open-source data. The practicality and clinical suitability of four face shields printed using a fused deposition modeling printer were examined. The weight, printing time, and required tools for assembly were evaluated. To assess the clinical suitability, each face shield was worn for one hour by 10 clinicians and rated using a visual analogue scale. The filament weight (21-42 g) and printing time (1:40-3:17 h) differed significantly between the four frames. Likewise, the fit, wearing comfort, space for additional PPE, and protection varied between the designs. For clinical suitability, a chosen design should allow sufficient space for goggles and N95 respirators as well as maximum coverage of the facial area. Consequently, two datasets are recommended. For the final selection of the ideal dataset to be used for printing, scalability and economic efficiency need to be carefully balanced with an acceptable degree of protection.

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Section: Printing Techniquementioning

confidence: 99%

3-D Printed Protective Equipment during COVID-19 Pandemic

et al. 2020

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“…FDM 3D printing is hampered by design and material limitations, although improvements appear almost continuously nowadays. The technology generally is not considered suitable for more intricate designs or where high strength is required [8]. Usually, the parts manufactured with this technique can exhibit some internal anisotropy due to layering procedure [9].…”

Section: Fused Deposition Modeling (Fdm)mentioning

confidence: 99%

Advanced Technologies in Manufacturing 3D-Layered Structures for Defense and Aerospace

Mouzakis¹

2018

Lamination - Theory and Application

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In the past 20 years, a great progress has been made in additive manufacturing techniques, which has led to numerous applications in aeronautical and defense structures. Though not all advanced materials and alloys, can be automatically layered by a rapid prototyping system or machine, several interesting application have seen the light of publicity in many sectors. Efforts are underway to apply the automated layering technologies in as many materials as possible, mostly nowadays plastics, reinforced-polymers, and metals can be processed by such systems in order to produce three-dimensional parts. The work is underway internationally in order to promote more and more applications of additive manufacturing or automated layering and to lower the costs in such systems. This paper aims at presenting a review of the additive manufacturing history presenting the major steps that lead to the explosion of this technology, and with a special focus on advanced 3D structures in aerospace and defense applications. An insight is also given on the four dimensions of manufacturing concept.

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“…The whole mixing head is fixed on the 3D printer, and the heating pipe and the thermal resistor are arranged on the heating block. The 3D printer connects to a computer via a USB cable running Repetier-Host software that controls the heating block [26][27][28]. The temperature of the heating block is set in terms of the melting point of filament.…”

Section: Test Verification Of the Nozzle For Color Mixing Devicementioning

confidence: 99%

Design and Analysis of Fused Deposition Modeling 3D Printer Nozzle for Color Mixing

Han

Xiao

et al. 2017

Advances in Materials Science and Engineering

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Fused deposition modeling (FDM) has been one of the most widely used rapid prototyping (RP) technologies leading to the increase in market attention. Obviously it is desirable to print 3D objects; however, existing FDM printers are restricted to printing only monochrome objects because of the entry-level nozzle structure, and literature on the topic is also sparse. In this paper, the CAD model of the nozzle is established first by UG (Unigraphics NX) software to show the structure of fused deposition modeling 3D printer nozzle for color mixing. Second, the flow channel model of the nozzle is extracted and simplified. Then, the CAD and finite element model are established by UG and ICEM CFD software, respectively, to prepare for the simulation. The flow field is simulated by Fluent software. The nozzle's suitable temperature at different extrusion speeds is obtained, and the reason for the blockage at the intersection of the heating block is revealed. Finally, test verification of the nozzle is performed, which can produce mixed-color artifacts stably.

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Mechanical Properties of FDM and SLA Low-cost 3-D Prints

Cited by 91 publications

References 3 publications

3-D Printed Protective Equipment during COVID-19 Pandemic

3-D Printed Protective Equipment during COVID-19 Pandemic

Advanced Technologies in Manufacturing 3D-Layered Structures for Defense and Aerospace

Design and Analysis of Fused Deposition Modeling 3D Printer Nozzle for Color Mixing

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