Effect of Material on the Mechanical Properties of Additive Manufactured Thermoplastic Parts

Cavalcanti, Daniel Kioshi; Queiroz, Henrique F. M. de

doi:10.35219/awet.2020.01

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…Any defect that occurs at this stage (e.g. porosity) is transferred to the 3D-printed specimens [23], [24]. The weight fraction of the fillers relative to the pellets was approx.…”

Section: Filament Fabricationmentioning

confidence: 99%

Mechanical Characterization of Filler Modified ABS 3D Printed Composites Made via Fused Filament Fabrication

Mendonça

Cavalcanti

Queiroz

et al. 2022

AWET

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Rapid prototyping (also known as additive manufacturing, AM) is a quickly developing process with increasing new applications in a large variety of industrial sectors (i.e., aerospace, automotive, medical, among others.) However, despite the great advantage of a decoupled price to part complexity of an AM fabricated structure, the material properties (largely governed by filament material and printing parameters) still present a significant limiting factor. In this context, the development of new filament materials for a wider range of applications has great potential. In this study, the influence of micro-scale filler reinforcement (powders), both natural (curauá) and synthetic (glass fibre), in the fabrication of an Acrylonitrile Butadiene Styrene (ABS) filament was evaluated. The filler was controlled by weight fraction (~1%) and the filament was fabricated via extrusion. A commercially available 3D printer was used to print tensile and flexural specimens for mechanical characterization as per ASTM standards. The fracture morphology was analysed after tensile testing via optical microscopy in order to evaluate the effect of the fillers on the material deposition and void formation. No significant variation in the tensile properties was reported, except for the strain at failure, while more significant flexural strength variation was observed as a function of filler material. The fillers presented a significant effect on the void density of the fractured surface. It was demonstrated that this simple fabrication technique can generate novel filament materials that may enhance the mechanical properties or widen the range of application (e.g., faster decomposition times in nature for single-use plastics due to the hydrophilic nature of the natural filler and lower water absorption of the hydrophobic synthetic filler for marine environment applications).

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“…Any defect that occurs at this stage (e.g. porosity) is transferred to the 3D-printed specimens [23], [24]. The weight fraction of the fillers relative to the pellets was approx.…”

Section: Filament Fabricationmentioning

confidence: 99%

Mechanical Characterization of Filler Modified ABS 3D Printed Composites Made via Fused Filament Fabrication

Mendonça

Cavalcanti

Queiroz

et al. 2022

AWET

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“…However, the mechanical performance of adhesive joints in 3D-printed parts can raise concerns. The intrinsic variability in material properties and surface roughness, attributed to the nature of 3D printing, can culminate in diminished bond strength [10], [13]- [15]. Therefore, strategies to enhance the mechanical performance of adhesive joints within 3D-printed components garner importance, proving the reliability and longevity of the final product.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Adhesive Bonding of 3D-Printed Parts and Methods to Increase their Mechanical Performance

Cavalcanti,

Medina,

de Queiroz

et al. 2023

AWET

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The use of additive manufacturing (AM) has revolutionized the production of polymer-based materials, offering a wide range of design possibilities and geometric complexity. However, due to the limitations of 3D printers to produce large parts, the parts often must be printed in several separate components and further joined together to obtain the final 3D-printed part. 3D printing can be used to produce only the most complex parts, which can be further combined with simple, non-printed parts from other materials to make the final product. One way to join 3D-printed part is an adhesive-bonded method. This paper focuses on the recent advances in adhesive bonding techniques for 3D-printed parts and explores various methods to enhance their mechanical performance. The benefits and limitations of each technique were discussed, and highlighted promising paths for future research. Finally, this paper provides a comprehensive overview of the current strategies to improve the mechanical performance of adhesive joints with AM-based adherents, offering guidance for the design and fabrication of high-performance structures in a range of applications. It was concluded that the configuration of the bonding area represents an essential parameter that directly influences the bonding strength and overall structural integrity of AM adhesive joints, and that the implementation of customized joint geometries can lead to a substantial enhancement in the joint strength of 3D-printed parts. The incorporation of reinforcing materials, optimization of the printing parameters of adherents, pre and post-treatment methods show potential in enhancing the bonding strength of the 3D-printed joints. The synergistic integration of these cutting-edge technologies can yield mutual advantages that complement each other, ultimately resulting in an enhanced overall performance for AM parts.

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Strengthening of additive manufactured parts by using different type of fibre reinforcements

Cavalcanti

Queiroz

Neto

2022

Int J Adv Manuf Technol

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Effect of Material on the Mechanical Properties of Additive Manufactured Thermoplastic Parts

Cited by 7 publications

References 19 publications

Mechanical Characterization of Filler Modified ABS 3D Printed Composites Made via Fused Filament Fabrication

Mechanical Characterization of Filler Modified ABS 3D Printed Composites Made via Fused Filament Fabrication

Recent Advances in Adhesive Bonding of 3D-Printed Parts and Methods to Increase their Mechanical Performance

Strengthening of additive manufactured parts by using different type of fibre reinforcements

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