CAD and 3D data acquisition technologies

Stephen, AO; Dalgarno, Kenneth; Munguía, Javier

doi:10.1201/b15961-8

Cited by 5 publications

(3 citation statements)

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“…Many statistical models have been used to study the effect of process parameters on the mechanical properties of the PLA parts produced by FDM [118,119] and to observe the resultant fatigue [120], distortion and degradation properties [121]. In order to increase the mechanical properties of the final products, 3D printable PLA-graphene composites were used to improve the mechanical resistance, flame retardancy and electrical conductivity of the printed objects [122].…”

Section: Pla In Extrusion-based Printing Technologiesmentioning

confidence: 99%

Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review

Baran

Erbil

2019

Colloids and Interfaces

168

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Polylactic acid (PLA) filaments are very popular as a thermoplastic source used in the 3D printing field by the “Fused Deposition Modeling” method in the last decade. The PLA market is expected to reach 5.2 billion US dollars in 2020 for all of its industrial uses. On the other hand, 3D printing is an expanding technology that has a large economic potential in many industries where PLA is one of the main choices as the source polymer due to its ease of printing, environmentally friendly nature, glossiness and multicolor appearance properties. In this review, we first reported the chemical structure, production methods, general properties, and present market of the PLA. Then, the chemical modification possibilities of PLA and its use in 3D printers, present drawbacks, and the surface modification methods of PLA polymers in many different fields were discussed. Specifically, the 3D printing method where the PLA filaments are used in the extrusion-based 3D printing technologies is reviewed in this article. Many methods have been proposed for the permanent surface modifications of the PLA where covalent attachments were formed such as alkaline surface hydrolysis, atom transfer polymerization, photografting by UV light, plasma treatment, and chemical reactions after plasma treatment. Some of these methods can be applied for surface modifications of PLA objects obtained by 3D printing for better performance in biomedical uses and other fields. Some recent publications reporting the surface modification of 3D printed PLA objects were also discussed.

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Section: Pla In Extrusion-based Printing Technologiesmentioning

confidence: 99%

Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review

Baran

Erbil

2019

Colloids and Interfaces

168

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“…However, by examining literature, it can be noted that the investigation of mechanical properties of parts processed by open-source low-cost 3D printers is not currently receiving much attention. In particular, this applies to the material used in this study, the polylactic acid (PLA) which, unlike ABS, has not been extensively used in this kind of experiments [20].…”

Section: Introductionmentioning

confidence: 99%

The impact of process parameters on mechanical properties of parts fabricated in PLA with an open-source 3-D printer

Lanzotti

Grasso

Staiano

et al. 2015

Rapid Prototyping Journal

503

264

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Purpose - This study aims to quantify the ultimate tensile strength and the nominal strain at break (f) of printed parts made from polylactic acid (PLA) with a Replicating Rapid prototyper (Rep-Rap) 3D printer, by varying three important process parameters: layer thickness, infill orientation and the number of shell perimeters. Little information is currently available about mechanical properties of parts printed using open-source, low-cost 3D printers. Design/methodology/approach - A computer-aided design model of a tensile test specimen was created, conforming to the ASTM:D638. Experiments were designed, based on a central composite design. A set of 60 specimens, obtained from combinations of selected paramers, was printed on a Rep-Rap Prusa I3 in PLA. Testing was performed using a JJ Instruments - T5002-type tensile testing machine and the load was measured using a load cell of 1,100 N. Findings - This study investigated the main impact of each process parameter on mechanical properties and the effects of interactions. The use of a response surface methodology allowed the proposition of an empirical model which connects process parameters and mechanical properties. Even though results showed a high variability, additional ideas on how to understand the impact of process parameters are suggested in this paper. Originality/value - On the basis of experimental results, it is possible to obtain practical suggestions to set common process parameters in relation to mechanical properties. Experiments discussed in the present paper provide a variety of data and insight regarding the relationship among the main process parameters and the stiffness and strength of fused deposition modeling-printed parts made from PLA. In particular, this paper underlines the shortage in existing literature concerning the impact of process parameters on the elastic modulus and the strain to failure for the PLA. The experimental data produced show a good degree of compliance with analytical formulations and other data found in literature

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“…Analysis of variance (ANOVA) was used to compare the significance of the effect of processing parameters on the mechanical properties. Their conclusion, on the basis of the data from experiments, was that a combination of measures of modulus, weight and impact strength can be used to infer the quality of a build on an FDM machine [5].…”

Section: Introductionmentioning

confidence: 99%

Correlation Between Process Parameters and Mechanical Properties in Parts Printed by the Fused Deposition Modeling Process

Attoye

Malekipour

El-Mounayri

2018

Mechanics of Additive and Advanced Manufacturing, Volume 8

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Fused deposition modeling (FDM) represents one of the most common techniques for rapid prototyping and industrial additive manufacturing (AM). Optimizing the process parameters which significantly impact the mechanical properties is critical to achieving the ultimate final part quality sought by industry today. This work investigates the effect of different process parameters including nozzle temperature, printing speed, and print orientation on Young's modulus, yield strength, and ultimate strength of the final part for two types of filament, namely, Poly Lactic Acid (PLA) and Acrylonitrile Butadiene Styrene (ABS). Design of Experiments (DOE) is used to determine optimized values of the process parameters for each type of filaments; also, a comparison is made between the mechanical properties of the parts fabricated with the two materials. The results show that Y-axis orientation presents the best mechanical properties in PLA while X-axis orientation is the best orientation to print parts with ABS.

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CAD and 3D data acquisition technologies

Cited by 5 publications

References 0 publications

Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review

Surface Modification of 3D Printed PLA Objects by Fused Deposition Modeling: A Review

The impact of process parameters on mechanical properties of parts fabricated in PLA with an open-source 3-D printer

Correlation Between Process Parameters and Mechanical Properties in Parts Printed by the Fused Deposition Modeling Process

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