Abstract
Ideally, objects are constructed as quickly as possible; however, short build times for a layer can present an issue. Short layer build times do not provide enough time for the material to cool sufficiently. As a result, an object cannot support its own weight nor deal with overhanging features. Additionally, the generation of support structures may be impractical either due to geometry or, in the case of large-scale polymer additive manufacturing, due to being difficult to remove. To address these issues, researchers at Oak Ridge National Laboratory's Manufacturing Demonstration Facility investigated the use of a thermal camera mounted to a gantry to collect data on an object under construction. This data provided feedback for an in-situ control system to adjust layer build times. Adjustments were made in the form of additional waiting to allow the material to cool to specific thermal thresholds. This additional cooling time allowed the construction of objects with low layer build times or overhanging features that would have otherwise failed.
Original language | English |
---|---|
Pages (from-to) | 482-488 |
Number of pages | 7 |
Journal | Procedia Manufacturing |
Volume | 34 |
DOIs | |
State | Published - 2019 |
Event | 47th SME North American Manufacturing Research Conference, NAMRC 2019 - Erie, United States Duration: Jun 10 2019 → Jun 14 2019 |
Funding
This material is based upon work supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Office of Advanced Manufacturing, under contract number DE-AC05-00OR22725. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/) This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the pubPeer-review under responsibility of the Scientific Committee of NAMRI/SME.lisher,byacceptingthearticleforpublication,acknowledgesthat theUS government retainsanonexclusive,paid-up,irrevocable,worldwidelicenseto publishorreproducethe published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance p1u0b.l1is0he1d6 f/ojr.mporfotmhisfgm.a2n0u1sc9r.ip0t6, o.2r0al2low others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance
Funders | Funder number |
---|---|
US Department of Energy | |
UT-Battelle | |
U.S. Department of Energy | |
Advanced Manufacturing Office | DE-AC05-00OR22725 |
Office of Energy Efficiency and Renewable Energy |
Keywords
- Big area additive manufacturing
- In-situ process monitoring
- Large-scale additive manufacturing
- Thermal analysis