About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Thermal-Assisted Direct Ink Write 3D Printing of Stainless Steel 316L Colloidal Pastes |
Author(s) |
John Obielodan, Taylor Nisius, Bert Wolle |
On-Site Speaker (Planned) |
John Obielodan |
Abstract Scope |
Additive manufacturing of metallic structures using sinter-based approaches are continuously being explored as alternatives to high-powered laser or electron beam processes. They enable indirect conversion of powdered metals, ceramics, or composite materials to solid structures at low costs. This work investigates the use of thermal-curable polymer matrix colloidal pastes for the fabrication of stainless steel (SS) 316L structures. Green samples were fabricated using highly loaded pastes of SS 316L and subsequently sintered at different temperatures to obtain high-density structures. Tests were conducted to understand (i) the optimal rheological properties of the colloidal pastes for 3D printing using direct ink write, (ii) the heating conditions for curing the deposited materials for shape fidelity, and (iii) to establish the sintering temperature paths. The parameters were correlated with the microstructures, densities, and other physical properties of printed samples. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |