A Printability Index for Linking Slurry Rheology to the Geometrical Attributes of 3D Printed Components (2018-04)¶

10.1016/j.cemconcomp.2018.03.022

Ketel Sabrina, Falzone Gabriel, Wang Bu, Washburn Newell, Sant Gaurav
Journal Article - Cement and Concrete Composites, Vol. 101, pp. 32-43

Abstract

While the field of 3D-printing (3DP; formally known as additive manufacturing) has increasingly matured, its use in large-scale applications, e.g., building and infrastructure construction, remains limited. Although layer-wise slurry deposition/extrusion (LSD/E) methods are amenable to scale-up and offer versatility in terms of the materials that can be printed (i.e., “inks” that can be used), there is a lack of quantitative metrics to assess the geometrical attributes of printed components vis-à-vis their 3D-CAD (computer-aided design) inputs. To address this limitation, we present an original method to assess the external geometrical attributes of 3D-printed components using laser triangulation-based 3D-scanning. Significantly, a printability index (0 ≤ Ip ≤ 1, unitless) is presented which compares the overall geometric fidelity of the printed specimen to its CAD input. By adjusting the rheology of a model silicate-based slurry, we examine the relationships between slurry rheology, shrinkage and printability. The printability index offers a quantitative basis for assessment and quality control of 3D-printed components, while helping to develop an improved understanding of how slurry behavior, and optimizations therein can maximize printability.

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7 References

41 Citations

BibTeX

@article{kete_falz_wang_wash.2019.APIfLSRttGAo3PC,
  author            = "Sabrina Ketel and Gabriel Falzone and Bu Wang and Newell Washburn and Gaurav Sant",
  title             = "A Printability Index for Linking Slurry Rheology to the Geometrical Attributes of 3D Printed Components",
  doi               = "10.1016/j.cemconcomp.2018.03.022",
  year              = "2019",
  journal           = "Cement and Concrete Composites",
  volume            = "101",
  pages             = "32--43",
}

Formatted Citation

IEEE

S. Ketel, G. Falzone, B. Wang, N. Washburn and G. Sant, “A Printability Index for Linking Slurry Rheology to the Geometrical Attributes of 3D Printed Components”, Cement and Concrete Composites, vol. 101, pp. 32–43, 2019, doi: 10.1016/j.cemconcomp.2018.03.022.

CMOS

Ketel, Sabrina, Gabriel Falzone, Bu Wang, Newell Washburn, and Gaurav Sant. “A Printability Index for Linking Slurry Rheology to the Geometrical Attributes of 3D Printed Components”. Cement and Concrete Composites 101 (2019): 32–43. https://doi.org/10.1016/j.cemconcomp.2018.03.022.