Investigating the influence of build parameters on the mechanical properties of FDM parts

Giannatsis, John; Sofos, K; Canellidis, V.; Karalekas, D.; Dedoussis, V.

doi:10.1201/b11341-85

Cited by 6 publications

(5 citation statements)

References 1 publication

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“…The tension specimens were tested in batches of ten printed for each build/raster orientation, and the results for all ten tests were averaged to find the properties in each orientation. Previous literature was primarily concerned with Young’s modulus, offset yield strength and failure modes for tensile specimens (Montero et al , 2001; Hill and Haghi, 2014; Giannatsis et al , 2012; Tymrak et al , 2014; Smith and Dean, 2013; Wittbrodt and Pearce, 2015; Torrado Perez et al , 2015, 2014). However, to give better insight into the complete material behavior, the elongation at break and the strain energy density were all calculated for each sample set.…”

Section: Resultsmentioning

confidence: 99%

“…This explosion, in popularity, has come with a proportionate increase in the study of 3D-printed techniques, as it is vital to comprehend the properties and characteristics of the parts which are created. Several previous studies utilized the American Society for Testing and Materials (ASTM) standard tensile test methods to determine the tensile properties as a function of the build and raster orientations the specimens were printed in (Bellini and Güçeri, 2003; Giannatsis et al , 2012; Hill and Haghi, 2014; Tymrak et al , 2014; Wittbrodt and Pearce, 2015; Torrado Perez et al , 2014, 2015; Es-Said et al , 2007; Ahn et al , 2003, 2002; Montero et al , 2001). Studies on anisotropy in AM materials are not limited to FDM materials.…”

Section: Introductionmentioning

confidence: 99%

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Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts

Cantrell

Rohde

Damiani³

et al. 2017

RPJ

342

202

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Purpose This paper aims to present the methodology and results of the experimental characterization of three-dimensional (3D) printed acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) parts utilizing digital image correlation (DIC). Design/methodology/approach Tensile and shear characterizations of ABS and PC 3D-printed parts were performed to determine the extent of anisotropy present in 3D-printed materials. Specimens were printed with varying raster ([+45/−45], [+30/−60], [+15/−75] and [0/90]) and build orientations (flat, on-edge and up-right) to determine the directional properties of the materials. Tensile and Iosipescu shear specimens were printed and loaded in a universal testing machine utilizing two-dimensional (2D) DIC to measure strain. The Poisson’s ratio, Young’s modulus, offset yield strength, tensile strength at yield, elongation at break, tensile stress at break and strain energy density were gathered for each tensile orientation combination. Shear modulus, offset yield strength and shear strength at yield values were collected for each shear combination. Findings Results indicated that raster and build orientations had negligible effects on the Young’s modulus or Poisson’s ratio in ABS tensile specimens. Shear modulus and shear offset yield strength varied by up to 33 per cent in ABS specimens, signifying that tensile properties are not indicative of shear properties. Raster orientation in the flat build samples reveals anisotropic behavior in PC specimens as the moduli and strengths varied by up to 20 per cent. Similar variations were observed in shear for PC. Changing the build orientation of PC specimens appeared to reveal a similar magnitude of variation in material properties. Originality/value This article tests tensile and shear specimens utilizing DIC, which has not been employed previously with 3D-printed specimens. The extensive shear testing conducted in this paper has not been previously attempted, and the results indicate the need for shear testing to understand the 3D-printed material behavior fully.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts

Cantrell

Rohde

Damiani³

et al. 2017

RPJ

342

202

View full text Add to dashboard Cite

show abstract

“…Z-Suite software, produced by the same company, was used to section the virtual model into layers. Printing parameters were selected based on what is known to provide consistent printing results [62][63][64][65] in order to minimize potential errors related to the manufacturing process. Layer settings used for slicing are layer height = 0.19 mm and layer width = 0.4 mm, with 2 outside perimeters and solid infill using a grid pattern (45 • raster angle, alternating each layer [66]).…”

Section: Methodsmentioning

confidence: 99%

Effect of UV-C Radiation on 3D Printed ABS-PC Polymers

et al. 2023

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During the initial stages of the COVID-19 pandemic, healthcare facilities experienced severe shortages of personal protective equipment (PPE) and other medical supplies. Employing 3D printing to rapidly fabricate functional parts and equipment was one of the emergency solutions used to tackle these shortages. Using ultraviolet light in the UV-C band (wavelengths of 200 nm to 280 nm) might prove useful in sterilizing 3D printed parts, enabling their reusability. Most polymers, however, degrade under UV-C radiation, so it becomes necessary to determine what 3D printing materials can withstand the conditions found during medical equipment sterilization with UV-C. This paper analyzes the effect of accelerated aging through prolonged exposure to UV-C on the mechanical properties of parts 3D printed from a polycarbonate and acrylonitrile butadiene styrene polymer (ABS-PC). Samples 3D printed using a material extrusion process (MEX) went through a 24-h UV-C exposure aging cycle and then were tested versus a control group for changes in tensile strength, compressive strength and some selected material creep characteristics. Testing showed minimal mechanical property degradation following the irradiation procedure, with tensile strength being statistically the same for irradiated parts as those in the control group. Irradiated parts showed small losses in stiffness (5.2%) and compressive strength (6.5%). Scanning electron microscopy (SEM) was employed in order to assess if any changes occurred in the material structure.

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“…Dependency between manufacturing orientation (and other parameters of additive manufacturing process) and technical and economic product indexes are of particular interest of research facilities all over the world dealing with the additive manufacturing technology. There are studies focused on identification and description of these relations [1,2,4] and their generaliza-tion and formulation of directives for the control of economic and technical indexes of products by optimal process parameter selection [3,9]. This paper presents research belonging to this type of study -it presents the results of experimental testing of influence of the orientation on the accuracy and dimensional repeatability of products obtained using one of the most widespread AM technologies -Fused Deposition Modelling (FDM).…”

Section: Introductionmentioning

confidence: 99%

Influence of Process Parameters on Dimensional Accuracy of Parts Manufactured Using Fused Deposition Modelling Technology

Górski¹,

Kuczko²,

Wichniarek³

2013

Adv. Sci. Technol. Res. J.

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The paper presents the results of experimental study -part of research of additive technology using thermoplastics as a build material, namely Fused Deposition Modelling (FDM). Aim of the study was to identify the relation between basic parameter of the FDM process -model orientation during manufacturing -and a dimensional accuracy and repeatability of obtained products. A set of samples was prepared -they were manufactured with variable process parameters and they were measured using 3D scanner. Significant differences in accuracy of products of the same geometry, but manufactured with different set of process parameters were observed.

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Investigating the influence of build parameters on the mechanical properties of FDM parts

Cited by 6 publications

References 1 publication

Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts

Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts

Effect of UV-C Radiation on 3D Printed ABS-PC Polymers

Influence of Process Parameters on Dimensional Accuracy of Parts Manufactured Using Fused Deposition Modelling Technology

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