An Empirical Design Tool for Estimating In-Plane Diametric Shrinkage and Bulging of Circular Cylinders Made With Fused-Deposition Modeling

Martusevich, Kirill; Sen, Chiradeep

doi:10.1115/detc2017-68039

Cited by 3 publications

(2 citation statements)

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“…This may be due to inconsistency or misinterpretation in the use of terminologies. Shrinkage and bulging of printed parts have been studied by Martusevich andSen (2017), Fessl et al (2018), Ullah et al (2020aUllah et al ( , 2020b as manufacturability and post-processing issues. To tackle such manufacturability and post-processing issues, and due to the complex and intricate geometries of most AM parts, future research should focus on automating the post-processing activities.…”

Section: The Outcomes Of Keyword Analysismentioning

confidence: 99%

A bibliometric analysis of research in design for additive manufacturing

Ugonna

Pradel

Sinclair

et al. 2022

RPJ

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Purpose The purpose of this paper is to understand how Design for Additive manufacturing Knowledge has been developing and its significance to both academia and industry. Design/methodology/approach In this paper, the authors use a bibliometric approach to analyse publications from January 2010 to December 2020 to explore the subject areas, publication outlets, most active authors, geographical distribution of scholarly outputs, collaboration and co-citations at both institutional and geographical levels and outcomes from keywords analysis. Findings The findings reveal that most knowledge has been developed in DfAM methods, rules and guidelines. This may suggest that designers are trying to learn new ways of harnessing the freedom offered by AM. Furthermore, more knowledge is needed to understand how to tackle the inherent limitations of AM processes. Moreover, DfAM knowledge has thus far been developed mostly by authors in a small number of institutional and geographical clusters, potentially limiting diverse perspectives and synergies from international collaboration which are essential for global knowledge development, for improvement of the quality of DfAM research and for its wider dissemination. Originality/value A concise structure of DfAM knowledge areas upon which the bibliometric analysis was conducted has been developed. Furthermore, areas where research is concentrated and those that require further knowledge development are revealed.

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Section: The Outcomes Of Keyword Analysismentioning

confidence: 99%

A bibliometric analysis of research in design for additive manufacturing

Ugonna

Pradel

Sinclair

et al. 2022

RPJ

View full text Add to dashboard Cite

show abstract

“…This volume reduction provokes internal stress which may lead to part deformation. Since the temperature distribution during cooling is not homogenous, design compensations require non-uniform part scaling (Xu, 2016; Martusevich and Sen, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of selected process parameters on dimensional accuracy in Arburg Plastic Freeforming

Mele

Pisaneschi

Campana

et al. 2022

RPJ

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Purpose The body of the literature on the Arburg Plastic Freeforming process is still very limited despite the increasing industrial importance of this technology. This paper aims to contribute to a better understanding of this technology by investigating relations between characteristic process parameters and part features. Particularly, the effects of nominal dimension, drop aspect ratio, build chamber temperature and part position on accuracy are investigated. The density of manufactured parts is also measured to understand its relation with dimensional error. Design/methodology/approach A benchmark part was designed and manufactured in Polycarbonate on an Arburg Plastic Freeformer 2K-3A. The process was repeated with two levels of drop aspect ratio (1.2125 and 1.2150) and two build chamber temperatures (90°C and 120°C). Each build job included five parts in different positions of the chamber. The dimensional accuracy of benchmarks was measured by using a digital caliper, while Archimede’s principle was used for density measurements. All the acquired results were processed through an analysis of variance to investigate the role of experimental factors. Findings Results demonstrate that the linear shrinkage occurring at the end of the 3D printing process is the main source of inaccuracy. The higher the building chamber temperature, the most the part accuracy is influenced by the nominal dimension. The drop aspect ratio affects the dimensional error in the XY plane by increasing the overlap of adjacent droplets. On the other hand, this parameter does not influence the accuracy along the Z direction. The position of the parts inside the building chamber exhibited an influence on results, arguably due to the hot airflows. Research limitations/implications This research did not allow for a complete understanding of the role of part positioning on part accuracy. Further study is needed to understand the detail of this phenomenon. Practical implications The results of this study can aid the users of Arburg Plastic Freeforming technology by uncovering the role of the main process parameters. Originality/value This paper expands the body of knowledge on the Arburg Plastic Freeforming process by providing new information on the role of the main process parameters on dimensional accuracy and density. Particularly, the results answer a research question on the role of the drop aspect ratio, demonstrating that its main effect is to vary the droplets overlap, which, in turn, affects the thermal shrinkage.

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