Characterizing the influence of print parameters on porosity and resulting density

James Brackett; Dakota Cauthen; Justin Condon; Tyler Smith; Nidia Gallego; Vlastamil Kunc; Chad Duty

Characterizing the influence of print parameters on porosity and resulting density

James Brackett, Dakota Cauthen, Justin Condon, Tyler Smith, Nidia Gallego, Vlastamil Kunc, Chad Duty

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

Extrusion deposition additive manufacturing produces parts with inherent porosity, which typically manifests as easily accessible voids between beads. This open porosity can also be accompanied by voids within the beads themselves, and both types can impact a part’s desired performance. Porosity is influenced by a variety of factors, including infill percentage, layer height, nozzle diameter, print speed, and raster orientation. While their influence on mechanical properties and porosity have been studied previously, there has been minimal work connecting print parameters to porosity and subsequently to mechanical performance. This study investigates the relationships between print parameters, volumetric porosity, and mechanical performance. In addition, this study measures both open and closed porosity through use of a helium pycnometer rather than image analysis of a cross-section. Thus, this study will identify correlations between the volumetric density of parts and the resulting mechanical performance as a function of print parameters.

Original language	English
Pages	766-778
Number of pages	13
State	Published - 2019
Event	30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019 - Austin, United States Duration: Aug 12 2019 → Aug 14 2019

Conference

Conference	30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019
Country/Territory	United States
City	Austin
Period	08/12/19 → 08/14/19

Funding

Research sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Industrial Technologies Program, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. This work was supported in part by Oak Ridge Institute for Science and Education through the Higher Education Research Experiences Program (HERE).

Funders	Funder number
U.S. Department of Energy
Office of Energy Efficiency and Renewable Energy	DE-AC05-00OR22725
Oak Ridge Institute for Science and Education

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

@conference{9717dbd261c84885ada6b88cb9c3a3a7,

title = "Characterizing the influence of print parameters on porosity and resulting density",

abstract = "Extrusion deposition additive manufacturing produces parts with inherent porosity, which typically manifests as easily accessible voids between beads. This open porosity can also be accompanied by voids within the beads themselves, and both types can impact a part{\textquoteright}s desired performance. Porosity is influenced by a variety of factors, including infill percentage, layer height, nozzle diameter, print speed, and raster orientation. While their influence on mechanical properties and porosity have been studied previously, there has been minimal work connecting print parameters to porosity and subsequently to mechanical performance. This study investigates the relationships between print parameters, volumetric porosity, and mechanical performance. In addition, this study measures both open and closed porosity through use of a helium pycnometer rather than image analysis of a cross-section. Thus, this study will identify correlations between the volumetric density of parts and the resulting mechanical performance as a function of print parameters.",

author = "James Brackett and Dakota Cauthen and Justin Condon and Tyler Smith and Nidia Gallego and Vlastamil Kunc and Chad Duty",

note = "Publisher Copyright: {\textcopyright} Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019. All rights reserved.; 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019 ; Conference date: 12-08-2019 Through 14-08-2019",

year = "2019",

language = "English",

pages = "766--778",

}

Characterizing the influence of print parameters on porosity and resulting density. / Brackett, James; Cauthen, Dakota; Condon, Justin et al.
2019. 766-778 Paper presented at 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019, Austin, United States.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Characterizing the influence of print parameters on porosity and resulting density

AU - Brackett, James

AU - Cauthen, Dakota

AU - Condon, Justin

AU - Smith, Tyler

AU - Gallego, Nidia

AU - Kunc, Vlastamil

AU - Duty, Chad

N1 - Publisher Copyright: © Solid Freeform Fabrication 2019: Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019. All rights reserved.

PY - 2019

Y1 - 2019

N2 - Extrusion deposition additive manufacturing produces parts with inherent porosity, which typically manifests as easily accessible voids between beads. This open porosity can also be accompanied by voids within the beads themselves, and both types can impact a part’s desired performance. Porosity is influenced by a variety of factors, including infill percentage, layer height, nozzle diameter, print speed, and raster orientation. While their influence on mechanical properties and porosity have been studied previously, there has been minimal work connecting print parameters to porosity and subsequently to mechanical performance. This study investigates the relationships between print parameters, volumetric porosity, and mechanical performance. In addition, this study measures both open and closed porosity through use of a helium pycnometer rather than image analysis of a cross-section. Thus, this study will identify correlations between the volumetric density of parts and the resulting mechanical performance as a function of print parameters.

AB - Extrusion deposition additive manufacturing produces parts with inherent porosity, which typically manifests as easily accessible voids between beads. This open porosity can also be accompanied by voids within the beads themselves, and both types can impact a part’s desired performance. Porosity is influenced by a variety of factors, including infill percentage, layer height, nozzle diameter, print speed, and raster orientation. While their influence on mechanical properties and porosity have been studied previously, there has been minimal work connecting print parameters to porosity and subsequently to mechanical performance. This study investigates the relationships between print parameters, volumetric porosity, and mechanical performance. In addition, this study measures both open and closed porosity through use of a helium pycnometer rather than image analysis of a cross-section. Thus, this study will identify correlations between the volumetric density of parts and the resulting mechanical performance as a function of print parameters.

UR - http://www.scopus.com/inward/record.url?scp=85095976617&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85095976617

SP - 766

EP - 778

T2 - 30th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2019

Y2 - 12 August 2019 through 14 August 2019

ER -

Characterizing the influence of print parameters on porosity and resulting density

Abstract

Conference

Funding

UN SDGs

Other files and links

Fingerprint

Cite this