About this Abstract |
Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
Presentation Title |
Evaluating the Design and Compressive Strength of AM Risers for Green Sand Metalcasting |
Author(s) |
C. R. Hasbrouck, Samantha Melnik, Nicholas A. Meisel |
On-Site Speaker (Planned) |
C. R. Hasbrouck |
Abstract Scope |
While many metalcasting foundries have experimented with using additive manufacturing (AM) for patternmaking, the compressive strength of the tapered AM risers for green sand metalcasting has not yet been explored. This study investigates the effects of infill pattern type, infill density, and shell thickness on the compressive strength of a standard 3-inch diameter by 5-inch tall by 3-degree taper cylindrical riser manufactured with PLA using a material extrusion process. The findings led to the creation of a design tool for patternmakers to incorporate AM into their workflow. The developed tool includes plots and mathematical models of compressive strengths at three different scales of the standard geometry (full, three-quarters, and half), predicted build times and masses using other common infill patterns, potential failure mechanisms during use of AM risers, and considerations on design for both additive manufacturing and green sand metalcasting. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |