| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
A-110: Influence of Print Orientation on Microstructure and Mechanical Performance of Selective Laser Sintered Polyamide-12 |
| Author(s) |
Anil Krishna Battu, Tamas Varga, Josef F Christ, Zachary C. Kennedy, Wenbin Kuang, Christopher A Barrett |
| On-Site Speaker (Planned) |
Anil Krishna Battu |
| Abstract Scope |
Additive manufacturing (AM) has been developed extensively in recent years to create variety of complex structures. Understanding the relationships between processing conditions and the resulting microstructure is critical for property evaluation of end components and optimization of the manufacturing process. SLS is one of the fastest growing AM techniques. In this work, we investigated the influence of processing conditions on the internal microstructure and mechanical properties of polyamide-12 parts. Using XCT to characterize the internal microstructure (porosity) of samples of four different build orientations we studied the relationships between SLS processing conditions, microstructure and mechanical properties. In this presentation, how manufacturing process affected pore volume, size, and pore connectivity in SLS specimens and how the evolved microstructure, in turn, affected product performance. The performance was characterized by tensile testing and analysis of the viscoelastic behavior of the specimens. Results from aging studies performed under varying conditions will also be presented. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |