About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Materials
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Presentation Title |
Microstructure and Mechanical Properties in Polymer Powder Bed Fusion Processes |
Author(s) |
Clinton S. Abbott, Nathan Crane |
On-Site Speaker (Planned) |
Clinton S. Abbott |
Abstract Scope |
Laser Powder Bed Fusion (L-PBF) and Multi-Jet Fusion (MJF) are two prevalent processes in the field of Powder Bed Fusion Additive Manufacturing (PBFAM). Large Area Projection Sintering (LAPS) is a recent addition to PBFAM capable of producing parts with higher densities and better mechanical properties than possible with either L-PBF or MJF. This paper compares the tensile properties and microstructure of Nylon (PA12) parts produced using L-PBF, MJF, and LAPS methods. High density of LAPS parts did not guarantee better mechanical properties. Improved strain of LAPS parts is linked to maintaining higher temperatures in the part during printing followed by fast cooling, resulting in smaller crystallite sizes. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |