| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Comparative Success of EBM and SLM for Fabrication of Lattice Structures in Metal Orthopaedic Implants |
| Author(s) |
Zeynep Kirimlier, Ece Tutsak, Onur Demirak, Alptuğ Öztaşkın, İpek Döş |
| On-Site Speaker (Planned) |
Onur Demirak |
| Abstract Scope |
Lattices are applied to the surface of implants to create the trabecular intersection that mimicks cancellous bone. The producibility of lattice structures with EBM and SLM are still being investigated since these PBF-AM methods have differences in principle and operation.
The objective of this study is to conduct comprehensive analysis of different types of lattices manufactured by EBM and SLM in terms of producibility, quality, mechanical and biological characteristics.
Eight different lattice unit cells available in the nTopology were selected to design lattices considering porosity, strut thickness, and cell size. A Python wrapper script was implemented, a finite element analysis has been conducted. Similar lattices to the cancellous bone were selected. To obtain optimum process parameters, bulk samples were produced for both SLM and EBM. Density test and microstructural analysis were performed. With the optimum process parameters, lattice samples were produced. SEM examination, compression, cytotoxicity and osseointegration tests were conducted. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |