Characterization of process–deformation/damage property relationship of fused deposition modeling (FDM) 3D-printed specimens

Kerekes, Tomas Webbe; Lim, Hyoung Jun; Joe, Woong Yeol; Yun, Gun Jin

doi:10.1016/j.addma.2018.11.008

Cited by 69 publications

(48 citation statements)

References 40 publications

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“…Additionally, due to the fabrication process of the circuit, which comprises, on the one hand, the fabrication of a substrate based on a plastic pseudo-thermofused layered structure, and for the other, the use of epoxy adhesives to glue the copper boards, it is necessary to check if the whole process results in a reliable structure. Errors in any of the fabrication stages, such as voids or bubbles in between the thermoplastic layers or in the substrate–adhesive-copper interfaces, excess of adhesive, or lack of homogeneity in the density of the material layers, would compromise both the expected performance and the structural integrity of the resulting circuit [ 27 , 28 ]. The structural analysis is conducted using ultrasonic nondestructive techniques, as it is fast, inexpensive, and very accurate, and can be used without damaging the materials for their future use.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Additive Manufacturing Techniques Applied to the Design of Planar Microwave Circuits by Fused Deposition Modeling

et al. 2020

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This work presents a study on the implementation and manufacturing of low-cost microwave electronic circuits, made with additive manufacturing techniques using fused deposition modeling (FDM) technology. First, the manufacturing process of substrates with different filaments, using various options offered by additive techniques in the manufacture of 3D printing parts, is described. The implemented substrates are structurally analyzed by ultrasound techniques to verify the correct metallization and fabrication of the substrate, and the characterization of the electrical properties in the microwave frequency range of each filament is performed. Finally, standard and novel microwave filters in microstrip and stripline technology are implemented, making use of the possibilities offered by additive techniques in the manufacturing process. The designed devices were manufactured and measured with good results, which demonstrates the possibility of using low-cost 3D printers in the design process of planar microwave circuits.

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Section: Introductionmentioning

confidence: 99%

Low-Cost Additive Manufacturing Techniques Applied to the Design of Planar Microwave Circuits by Fused Deposition Modeling

et al. 2020

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“…As the mechanical properties under investigation, tensile [22] and flexural [23] ultimate strength and the modulus of elasticity are most often chosen. Often, a comparative analysis of various materials [24,25], technologies [26], structures [27,28], and filling directions [29] is carried out. In some works, the authors conducted a comparative analysis of experimental and theoretical data [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Infill Density on the Mechanical Properties of Nylon Specimens Made by Filament Fused Fabrication

2019

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Additive manufacturing of polymer products over the past decade has become widespread in various areas of industry. Using the fused filament fabrication (FFF) method, one of the most technologically simple methods of additive manufacturing, it is possible to produce parts from a large number of different materials, including wear-resistant nylon. The novelty of the work is properties investigation of ±45° filling configuration with different filling degree for nylon, as well as calculating the effect of infill on the strength characteristics, excluding the shell. This article reflects the process of manufacturing samples from nylon using FFF technology with various internal topologies, as well as tensile tests. The analysis of the obtained results is performed and the relationship between the structure of the sample and the limit of its strength is established. To calculate real filling degree and the effect of internal filling on the strength characteristics of the specimen, it is proposed to use a method based on the geometric and mass parameters. The FFF method is promising for developing methods for producing a composite material. The results of this article can be useful in choosing the necessary manufacturing parameters.

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“…Additive Manufacturing (AM) or 3D printing is a procedure for creating three-dimensional (3D) objects from Computer-Aided Design (CAD models) through an additive procedure in which the fracture behavior and its variation with the process parameters, like infill rate density and layer thickness [31]. In addition, the value of the fracture toughness or the critical stress intensity factor (K IC ) depends upon the fatigue pre-crack length.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Performance Assessment of Internally-Defected Materials Manufactured Using Additive Manufacturing Technology

Mourad

Idrisi

Christy

et al. 2019

JMMP

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Assessment of the mechanical performance of internally-defected components or struc-tures is of crucial importance to many industrial fields such as aerospace, automobile, marine, construction etc. Most of the studies available in the literature include only analytical or numerical solutions, due to difficulty in the manufacturing of a testing sample with a specific internal defect geometry for experimental evaluations. In this study, Fusion Deposition Modeling (FDM) was utilized in the 3D-printing of Polylactic Acid (PLA) samples with internal cracks, aiming to assess their impact on the samples’ mechanical performance. The defect geometry, orientation, location along the sample gauge length and the influence of the process parameters, such as the infill percentage and the material color, were investigated. The influence of the internal defects is more pronounced for a 100% infill rate if compared with a 50% infill rate as a consequence of the porosity. A maximum drop of ~14% in the peak load of defect-free samples was recorded due to the presence of the internal defect. Moreover, the additive color to the PLA material might contribute to the material strength. Generally, the findings of this work could open another door for utilizing the additive manufacturing in many research areas, with potential industrial applications relevant to the assessment of internally-defected materials.

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Characterization of process–deformation/damage property relationship of fused deposition modeling (FDM) 3D-printed specimens

Cited by 69 publications

References 40 publications

Low-Cost Additive Manufacturing Techniques Applied to the Design of Planar Microwave Circuits by Fused Deposition Modeling

Low-Cost Additive Manufacturing Techniques Applied to the Design of Planar Microwave Circuits by Fused Deposition Modeling

Effects of the Infill Density on the Mechanical Properties of Nylon Specimens Made by Filament Fused Fabrication

Mechanical Performance Assessment of Internally-Defected Materials Manufactured Using Additive Manufacturing Technology

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