scholarly journals Investigation into the Influence of Fused Deposition Modeling (FDM) Process Parameters on the Thermal Properties of 3D-Printed Parts

2018 ◽  
Author(s):  
Ahmed Elkholy ◽  
Roger Kempers
Keyword(s):  
Thermal Properties ◽  
Process Parameters ◽  
Fused Deposition Modeling ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
3D Printed

Silane-Treated Muscovite as Reinforcement for 3D-Printed ABS via Fused Deposition Modeling

2021 ◽  
Vol 877 ◽  
pp. 67-72
Author(s):  
Niño B. Felices ◽  
Bryan B. Pajarito
Keyword(s):  
Thermal Properties ◽  
Fused Deposition Modeling ◽  
Acrylonitrile Butadiene Styrene ◽  
Mechanical And Thermal Properties ◽  
Scanning Calorimetry ◽  
Mechanical Reinforcement ◽  
Fused Deposition ◽  
The Matrix ◽  
Deposition Modeling ◽  
3D Printed

Epoxysilane-treated muscovite (ETM) was used as reinforcing filler to 3D-printed acrylonitrile butadiene styrene (ABS) via fused deposition modeling (FDM). Its effects to the mechanical and thermal properties of ABS were investigated. ETM was loaded at 1, 3, and 5wt%. ABS/ETM composites were characterized via scanning electron microscopy (SEM), tensile test, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Mechanical reinforcement of ABS was observed for ABS/ETM composites loaded at 1 and 3 wt% wherein it was noted that the tensile strength and elastic modulus increased by up to 83.6% and 76.6%, respectively. Reinforcement was brought by interfacial adhesion of ETM with the ABS matrix. There was a sharp decline in mechanical properties for ABS/ETM composites loaded at 5wt% due to agglomeration of ETM in the matrix and discontinuities in the printed layers. The glass transition temperature (Tg) of ABS increased and the onset of its degradation shifted towards higher temperatures with the addition of ETM. It can be concluded that the addition of ETM to ABS for FDM 3D printing improved its mechanical and thermal properties.

Evaluation of Fused Deposition Modeling Process Parameters Influence on 3D Printed Components by High Precision Metrology

2021 ◽  
pp. 281-295
Author(s):  
Alexandru D. Sterca ◽  
Roxana-Anamaria Calin ◽  
Lucian Cristian ◽  
Eva Maria Walcher ◽  
Osman Bodur ◽  
...  
Keyword(s):  
High Precision ◽  
Process Parameters ◽  
Fused Deposition Modeling ◽  
Fused Deposition ◽  
Modeling Process ◽  
Deposition Modeling ◽  
3D Printed ◽  
Precision Metrology

scholarly journals Mechanical Properties of FDM Printed PLA Parts before and after Thermal Treatment

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1239
Author(s):  
Ali Chalgham ◽  
Andrea Ehrmann ◽  
Inge Wickenkamp
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Process Parameters ◽  
Fused Deposition Modeling ◽  
Poly Lactic Acid ◽  
Three Point Bending ◽  
Fused Deposition ◽  
Before And After ◽  
Deposition Modeling ◽  
3D Printed

Fused deposition modeling (FDM) is one of the most often-used technologies in additive manufacturing. Several materials are used with this technology, such as poly(lactic acid) (PLA), which is most commonly applied. The mechanical properties of 3D-printed parts depend on the process parameters. This is why, in this study, three-point bending tests were carried out to characterize the influence of build orientation, layer thickness, printing temperature and printing speed on the mechanical properties of PLA samples. Not only the process parameters may affect the mechanical properties, but heat after-treatment also has an influence on them. For this reason, additional samples were printed with optimal process parameters and characterized after pure heat treatment as well as after deformation at a temperature above the glass transition temperature, cooling with applied deformation, and subsequent recovery under heat treatment. These findings are planned to be used in a future study on finger orthoses that could either be printed according to shape or in a flat shape and afterwards heated and bent around the finger.

Effect of Silane-Treated Wollastonite on Mechanical and Thermal Properties of 3D-Printed ABS via Fused Deposition Modeling

2021 ◽  
Vol 877 ◽  
pp. 61-66
Author(s):  
Niño B. Felices ◽  
Bryan B. Pajarito
Keyword(s):  
Thermal Properties ◽  
Fused Deposition Modeling ◽  
Acrylonitrile Butadiene Styrene ◽  
Filler Loading ◽  
Mechanical And Thermal Properties ◽  
Scanning Calorimetry ◽  
Fused Deposition ◽  
Uniform Dispersion ◽  
Deposition Modeling ◽  
3D Printed

The effect of the addition of epoxysilane-treated wollastonite (ETW) to the mechanical and thermal properties of 3D-printed acrylonitrile butadiene styrene (ABS) via fused deposition modeling (FDM) was investigated. The loading of ETW was varied at 1, 3, and 5wt%. The 3D-printed composites were evaluated by scanning electron microscopy (SEM) tensile test, shore D hardness, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The addition of ETW increases the tensile strength, elastic modulus, and toughness of ABS by up to 46.6, 56.2, and 53.7 %, respectively. The shore D hardness increases with increasing ETW. Morphological analysis show that this improvement in mechanical properties is a result of the high aspect ratio of the fillers, the uniform dispersion of ETW in the ABS matrix, and the orientation of ETW particles toward the direction of tensile stress. The glass transition temperature (Tg) of the composites increases and the onset of degradation slightly shifted to higher temperature with an increase in filler loading. The addition of ETW to ABS matrix in FDM 3D printing improved the mechanical and thermal properties of ABS.

scholarly journals Study on Properties of Automatically Designed 3D-Printed Customized Prosthetic Sockets

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5240
Author(s):  
Filip Górski ◽  
Radosław Wichniarek ◽  
Wiesław Kuczko ◽  
Magdalena Żukowska
Keyword(s):  
Process Parameters ◽  
Fused Deposition Modeling ◽  
Automated Design ◽  
Process Stability ◽  
Strength Criteria ◽  
Fused Deposition ◽  
3D Printers ◽  
Deposition Modeling ◽  
3D Printed ◽  
Comfort Criteria

This paper presents the results of experiments conducted on a batch of additively manufactured customized prosthetic sockets for upper limbs, made of thermoplastics and designed automatically on the basis of a 3D-scanned limb of a 3-year-old patient. The aim of this work was to compare sockets made of two different materials—rigid PLA and elastic TPE. Two distinct socket designs with various mounting systems were prepared. To find a reliable set of parameters for cheap and stable manufacturing of usable prostheses using 3D printers, realizing the fused deposition modeling (FDM) process, sets of sockets were manufactured with various process parameters. This paper presents the methodology of the design, the plan of the experiments and the obtained results in terms of process stability, fit and assessment by patient, as well as strength of the obtained sockets and their measured surface roughness. The results are promising, as most of the obtained products fulfil the strength criteria, although not all of them meet the fitting and use comfort criteria. As a result, recommendations of materials and process parameters were determined. These parameters were included in a prototype of the automated design and production system developed by the authors, and prostheses for several other patients were manufactured.

Biodegradable 3D Printed Polymer Microneedles for Transdermal Drug Delivery

2018 ◽  
Author(s):  
Michael A. Luzuriaga ◽  
Danielle R. Berry ◽  
John C. Reagan ◽  
Ronald A. Smaldone ◽  
Jeremiah J. Gassensmith
Keyword(s):  
Drug Delivery ◽  
3D Printing ◽  
Transdermal Drug Delivery ◽  
Fused Deposition Modeling ◽  
Fused Deposition ◽  
Modeling Software ◽  
Deposition Modeling ◽  
3D Printed ◽  
Microfabrication Technique ◽  
Mechanical Strengths

Biodegradable polymer microneedle (MN) arrays are an emerging class of transdermal drug delivery devices that promise a painless and sanitary alternative to syringes; however, prototyping bespoke needle architectures is expensive and requires production of new master templates. Here, we present a new microfabrication technique for MNs using fused deposition modeling (FDM) 3D printing using polylactic acid, an FDA approved, renewable, biodegradable, thermoplastic material. We show how this natural degradability can be exploited to overcome a key challenge of FDM 3D printing, in particular the low resolution of these printers. We improved the feature size of the printed parts significantly by developing a post fabrication chemical etching protocol, which allowed us to access tip sizes as small as 1 μm. With 3D modeling software, various MN shapes were designed and printed rapidly with custom needle density, length, and shape. Scanning electron microscopy confirmed that our method resulted in needle tip sizes in the range of 1 – 55 µm, which could successfully penetrate and break off into porcine skin. We have also shown that these MNs have comparable mechanical strengths to currently fabricated MNs and we further demonstrated how the swellability of PLA can be exploited to load small molecule drugs and how its degradability in skin can release those small molecules over time.

scholarly journals Controlling magnetic properties of 3D-printed magnetic elastomer structures via fused deposition modeling

AIP Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 025223
Author(s):  
Thomas M. Calascione ◽  
Nathan A. Fischer ◽  
Thomas J. Lee ◽  
Hannah G. Thatcher ◽  
Brittany B. Nelson-Cheeseman
Keyword(s):  
Magnetic Properties ◽  
Fused Deposition Modeling ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
3D Printed
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