Parametric analysis on vertical pins for strengthening extrusion-based printed parts

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

For extrusion-based additive manufacturing, the mechanical performance in vertical direction (z-direction) is significantly lower than that in the printed layer plane (xy-direction). This paper presents a vertical extrusion approach across several layers to improve the mechanical properties of a 3D printed part. This approach is patent pending, and it involves depositing pins in the z-direction into predefined holes. It requires the vertical pins to mechanically engage with the surrounding structure of the holes. To maximize the mechanical performance of the printed structures with pins, we then analyzed the penetration quality of the pins with a wide range of hole depths, hole sizes, and pin volumes and obtained the relationship between the hole width and the hole depth for the full penetration of pins.

Original languageEnglish
Title of host publicationSAMPE Long Beach 2018 Conference and Exhibition
EditorsKara Storage, Thomas Sutter, Scott Beckwith, Gary Bond, Tara Storage
PublisherSoc. for the Advancement of Material and Process Engineering
ISBN (Electronic)9781934551271
StatePublished - 2018
EventSAMPE Long Beach 2018 Conference and Exhibition - Long Beach, United States
Duration: May 21 2018May 24 2018

Publication series

NameInternational SAMPE Technical Conference
Volume2018-May

Conference

ConferenceSAMPE Long Beach 2018 Conference and Exhibition
Country/TerritoryUnited States
CityLong Beach
Period05/21/1805/24/18

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. The authors thank Dylan Hoskins for performing mechanical tests. Notice of Copyright: This manuscript has been authored 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-

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