Effect of layer thickness and print orientation on strength of 3D printed and adhesively bonded single lap joints

Kovan, Volkan; Altan, Gürkan; Topal, Eyüp Sabri

doi:10.1007/s12206-017-0415-7

Cited by 89 publications

(48 citation statements)

References 7 publications

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“…Group A is the main reason of the lowest failure load, when compared to the complete adherend failure of other groups. It was shown in the literature that the adherend strength and rigidity is greatly affected by printing orientation [19,20]. Therefore, the edgewise Group A adherend joints had higher strength and stiffness than the flatwise adherend, resulting in a higher joint failure load capacity.…”

Section: Effect Of Printing Orientationmentioning

confidence: 99%

Mechanical Characterization of Bonded Joints Made of Additive Manufactured Adherends

Cavalcanti

Queiroz²

2019

ANN_UDJG_AWET

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In this study, the mechanical behaviour of bonded joints made of additive manufactured (AM) adherends was experimentally investigated. Two different methods to increase the mechanical strength of the AM joints bonded with an epoxy adhesive were studied: the effect of modifying the geometry of the adherends along the overlap length (with a sinusoid interface) and the influence of two different print orientations (flatwise and edgewise direction) on the load capacity of 3D-printed parts bonded joints. Single lap-joints (SLJs) were tested for each case studied. Results showed an increase in load capacity of the joints by modifying the geometry of the adherends along the overlap length (the load capacity increased by 62% for flatwise and 36% for edgewise print orientation). Modifying the morphology of the 3D-printed adherends surfaces in the overlap region had a more significant influence on the load capacity of the joints compared to modifying the print orientation of the 3D-printed parts.

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Section: Effect Of Printing Orientationmentioning

confidence: 99%

Mechanical Characterization of Bonded Joints Made of Additive Manufactured Adherends

Cavalcanti

Queiroz²

2019

ANN_UDJG_AWET

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“…However, PLA has significant drawbacks that limit its use in various applications: Low impact resistance, short elongation, and low-temperature resistance. The stress at break is usually less than 10%, and the impact strength is below 2.5 kJ/m 2 [3][4][5]. In order to compensate for the shortcomings of PLA, acrylonitrile butadiene styrene (ABS) stands out among the hardening polymers due to its high elongation during tensile tests, good durability and ease of extrusion and molding.…”

Section: Introductionmentioning

confidence: 99%

“…In relation to solutions in the literature, the investigated technology allows for better joint properties to be obtained than presented in the paper [3]. 7.…”

mentioning

confidence: 99%

The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology

et al. 2020

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The paper is focused on the examination of the internal quality of joints created in a multi-material additive manufacturing process. The main part of the work focuses on experimental production and non-destructive testing of restrained joints of modified PLA (polylactic acid) and ABS (Acrylonitrile butadiene styrene) three-dimensional (3D)-printed on RepRap 3D device that works on the “open source” principle. The article presents the outcomes of a non-destructive materials test in the form of the data from the Laser Amplified Ultrasonography, microscopic observations of the joints area and tensile tests of the specially designed samples. The samples with designed joints were additively manufactured of two materials: Specially blended PLA (Market name—PLA Tough) and conventionally made ABS. The tests are mainly focused on the determination of the quality of material connection in the joints area. Based on the results obtained, the samples made of two materials were compared in the end to establish which produced material joint is stronger and have a lower amount of defects.

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“…However, PLA has significant drawbacks that limit its use in various applications: low impact resistance, short elongation, and low-temperature resistance. The stress at break is usually less than 10%, and the impact strength is below 2.5 kJ/m2 [3][4][5]. In order to compensate for the shortcomings of PLA, acrylonitrile butadiene styrene (ABS) stands out among the hardening polymers due to its high elongation during tensile tests, good durability and ease of extrusion and molding.…”

Section: Introductionmentioning

confidence: 99%

The Examination of Restrained Joints Created in the Process of Multi-material FFF Additive Manufacturing Technology

Kluczyński¹,

Śnieżek²,

Kravcov³

et al. 2020

Preprint

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The paper is focused on the examination of the internal quality of joints created in a multi-material - additive manufacturing process. The main part of the work focuses on experimental production and non-destructive testing of restrained joints of modified PLA (polylactic acid) and ABS (Acrylonitrile butadiene styrene) 3Dprinted on RepRap 3D device that works on the "open source" principle. The article presents the outcomes of non-destructive materials test in the form of the data from the Laser Amplified Ultrasonography, microscopic observations of the joints area and tensile tests of the specially designed samples. The samples with designed joints were additively manufactured of two materials: specially blended PLA (Market name – PLA Tough) and conventionally made ABS. The tests are mainly focused on the determination of the quality of material connection in the joints area. Based on the results obtained, the samples made of two materials were compared in the end to establish which produced material joint is stronger and have a lower amount of defects.

show abstract

Effect of layer thickness and print orientation on strength of 3D printed and adhesively bonded single lap joints

Cited by 89 publications

References 7 publications

Mechanical Characterization of Bonded Joints Made of Additive Manufactured Adherends

Mechanical Characterization of Bonded Joints Made of Additive Manufactured Adherends

The Examination of Restrained Joints Created in the Process of Multi-Material FFF Additive Manufacturing Technology

The Examination of Restrained Joints Created in the Process of Multi-material FFF Additive Manufacturing Technology

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