Z-pinning approach for improving interlayer strength of 3D printed parts

Chad Duty; Jordan Failla; Seokpum Kim; Tyler Smith; John Lindahl; Alexander Lambert; Vlastimil Kunc

Z-pinning approach for improving interlayer strength of 3D printed parts

Chad Duty, Jordan Failla, Seokpum Kim, Tyler Smith, John Lindahl, Alexander Lambert, Vlastimil Kunc

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Since additively manufactured (AM) parts are built in a layer-wise fashion, the mechanical properties are typically highly anisotropic. Extrusion-based AM systems like fused filament fabrication (FFF) commonly demonstrate a 50-75 % decrease in mechanical strength in the build direction (z-axis) compared to the x-y plane. This study presents a novel 3D printing approach called “z-pinning” that allows deposition of material across build layers throughout the volume of the part. Initial results with polylactic acid (PLA) and carbon fiber reinforced PLA have shown an increase in the z-direction strength by a factor of 3.5x. Direct comparison with x-direction strength for z-pinned samples also demonstrated a significant reduction in mechanical anisotropy – with some samples showing a quasi-isotropic response.

Original language	English
Title of host publication	SAMPE Conference and Exhibition
Editors	Kevin Ahlstrom, Jacob Preston Anderson, Scott Beckwith, Andrew Craig Becnel, Paul Joseph Biermann, Matt Buchholz, Elizabeth Cates, Brian Gardner, Jim Harris, Michael J. Knight, German Reyes-Villanueva, Stephen E. Scarborough, Phil Sears, James Thomas, Erik T. Thostenson
Publisher	Soc. for the Advancement of Material and Process Engineering
ISBN (Electronic)	9781934551301
State	Published - 2019
Event	SAMPE 2019 Conference and Exhibition - Charlotte, United States Duration: May 20 2019 → May 23 2019

Publication series

Name	International SAMPE Technical Conference
Volume	2019-May

Conference

Conference	SAMPE 2019 Conference and Exhibition
Country/Territory	United States
City	Charlotte
Period	05/20/19 → 05/23/19

Funding

This manuscript has been authored in part by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Cite this

Duty, C., Failla, J., Kim, S., Smith, T., Lindahl, J., Lambert, A., & Kunc, V. (2019). Z-pinning approach for improving interlayer strength of 3D printed parts. In K. Ahlstrom, J. P. Anderson, S. Beckwith, A. C. Becnel, P. J. Biermann, M. Buchholz, E. Cates, B. Gardner, J. Harris, M. J. Knight, G. Reyes-Villanueva, S. E. Scarborough, P. Sears, J. Thomas, & E. T. Thostenson (Eds.), SAMPE Conference and Exhibition (International SAMPE Technical Conference; Vol. 2019-May). Soc. for the Advancement of Material and Process Engineering.

Duty, Chad ; Failla, Jordan ; Kim, Seokpum et al. / Z-pinning approach for improving interlayer strength of 3D printed parts. SAMPE Conference and Exhibition. editor / Kevin Ahlstrom ; Jacob Preston Anderson ; Scott Beckwith ; Andrew Craig Becnel ; Paul Joseph Biermann ; Matt Buchholz ; Elizabeth Cates ; Brian Gardner ; Jim Harris ; Michael J. Knight ; German Reyes-Villanueva ; Stephen E. Scarborough ; Phil Sears ; James Thomas ; Erik T. Thostenson. Soc. for the Advancement of Material and Process Engineering, 2019. (International SAMPE Technical Conference).

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title = "Z-pinning approach for improving interlayer strength of 3D printed parts",

abstract = "Since additively manufactured (AM) parts are built in a layer-wise fashion, the mechanical properties are typically highly anisotropic. Extrusion-based AM systems like fused filament fabrication (FFF) commonly demonstrate a 50-75 % decrease in mechanical strength in the build direction (z-axis) compared to the x-y plane. This study presents a novel 3D printing approach called “z-pinning” that allows deposition of material across build layers throughout the volume of the part. Initial results with polylactic acid (PLA) and carbon fiber reinforced PLA have shown an increase in the z-direction strength by a factor of 3.5x. Direct comparison with x-direction strength for z-pinned samples also demonstrated a significant reduction in mechanical anisotropy – with some samples showing a quasi-isotropic response.",

author = "Chad Duty and Jordan Failla and Seokpum Kim and Tyler Smith and John Lindahl and Alexander Lambert and Vlastimil Kunc",

note = "Publisher Copyright: {\textcopyright} 2019 Soc. for the Advancement of Material and Process Engineering. All rights reserved.; SAMPE 2019 Conference and Exhibition ; Conference date: 20-05-2019 Through 23-05-2019",

year = "2019",

language = "English",

series = "International SAMPE Technical Conference",

publisher = "Soc. for the Advancement of Material and Process Engineering",

editor = "Kevin Ahlstrom and Anderson, {Jacob Preston} and Scott Beckwith and Becnel, {Andrew Craig} and Biermann, {Paul Joseph} and Matt Buchholz and Elizabeth Cates and Brian Gardner and Jim Harris and Knight, {Michael J.} and German Reyes-Villanueva and Scarborough, {Stephen E.} and Phil Sears and James Thomas and Thostenson, {Erik T.}",

booktitle = "SAMPE Conference and Exhibition",

}

Duty, C, Failla, J, Kim, S, Smith, T, Lindahl, J, Lambert, A & Kunc, V 2019, Z-pinning approach for improving interlayer strength of 3D printed parts. in K Ahlstrom, JP Anderson, S Beckwith, AC Becnel, PJ Biermann, M Buchholz, E Cates, B Gardner, J Harris, MJ Knight, G Reyes-Villanueva, SE Scarborough, P Sears, J Thomas & ET Thostenson (eds), SAMPE Conference and Exhibition. International SAMPE Technical Conference, vol. 2019-May, Soc. for the Advancement of Material and Process Engineering, SAMPE 2019 Conference and Exhibition, Charlotte, United States, 05/20/19.

Z-pinning approach for improving interlayer strength of 3D printed parts. / Duty, Chad; Failla, Jordan; Kim, Seokpum et al.
SAMPE Conference and Exhibition. ed. / Kevin Ahlstrom; Jacob Preston Anderson; Scott Beckwith; Andrew Craig Becnel; Paul Joseph Biermann; Matt Buchholz; Elizabeth Cates; Brian Gardner; Jim Harris; Michael J. Knight; German Reyes-Villanueva; Stephen E. Scarborough; Phil Sears; James Thomas; Erik T. Thostenson. Soc. for the Advancement of Material and Process Engineering, 2019. (International SAMPE Technical Conference; Vol. 2019-May).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Z-pinning approach for improving interlayer strength of 3D printed parts

AU - Duty, Chad

AU - Failla, Jordan

AU - Kim, Seokpum

AU - Smith, Tyler

AU - Lindahl, John

AU - Lambert, Alexander

AU - Kunc, Vlastimil

PY - 2019

Y1 - 2019

N2 - Since additively manufactured (AM) parts are built in a layer-wise fashion, the mechanical properties are typically highly anisotropic. Extrusion-based AM systems like fused filament fabrication (FFF) commonly demonstrate a 50-75 % decrease in mechanical strength in the build direction (z-axis) compared to the x-y plane. This study presents a novel 3D printing approach called “z-pinning” that allows deposition of material across build layers throughout the volume of the part. Initial results with polylactic acid (PLA) and carbon fiber reinforced PLA have shown an increase in the z-direction strength by a factor of 3.5x. Direct comparison with x-direction strength for z-pinned samples also demonstrated a significant reduction in mechanical anisotropy – with some samples showing a quasi-isotropic response.

AB - Since additively manufactured (AM) parts are built in a layer-wise fashion, the mechanical properties are typically highly anisotropic. Extrusion-based AM systems like fused filament fabrication (FFF) commonly demonstrate a 50-75 % decrease in mechanical strength in the build direction (z-axis) compared to the x-y plane. This study presents a novel 3D printing approach called “z-pinning” that allows deposition of material across build layers throughout the volume of the part. Initial results with polylactic acid (PLA) and carbon fiber reinforced PLA have shown an increase in the z-direction strength by a factor of 3.5x. Direct comparison with x-direction strength for z-pinned samples also demonstrated a significant reduction in mechanical anisotropy – with some samples showing a quasi-isotropic response.

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A2 - Beckwith, Scott

A2 - Becnel, Andrew Craig

A2 - Biermann, Paul Joseph

A2 - Buchholz, Matt

A2 - Cates, Elizabeth

A2 - Gardner, Brian

A2 - Harris, Jim

A2 - Knight, Michael J.

A2 - Reyes-Villanueva, German

A2 - Scarborough, Stephen E.

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ER -

Duty C, Failla J, Kim S, Smith T, Lindahl J, Lambert A et al. Z-pinning approach for improving interlayer strength of 3D printed parts. In Ahlstrom K, Anderson JP, Beckwith S, Becnel AC, Biermann PJ, Buchholz M, Cates E, Gardner B, Harris J, Knight MJ, Reyes-Villanueva G, Scarborough SE, Sears P, Thomas J, Thostenson ET, editors, SAMPE Conference and Exhibition. Soc. for the Advancement of Material and Process Engineering. 2019. (International SAMPE Technical Conference).

Z-pinning approach for improving interlayer strength of 3D printed parts

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