About this Abstract |
Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
Presentation Title |
Energy Efficiency of Polymer Additive Manufacturing by Material Extrusion |
Author(s) |
David Kazmer, Amy Peterson, Austin Colon |
On-Site Speaker (Planned) |
David Kazmer |
Abstract Scope |
The energy efficiency of material extrusion processes used in polymer additive manufacturing is characterized and compared to the theoretical minimum specific energy required for polymer processing. While AM is believed to provide improved environmental sustainability relative to conventional net shape manufacturing processes, energy efficiencies are shockingly low, less than 10% relative to the theoretical minimum. Power and energy usage is acquired for both filament-based and pellet-based extruders producing tensile specimens with process plans based on concentric in-fills and a hybrid molding/printing process referred to as injection printing. Variance analysis is performed explaining the sources of inefficiency and the need for improved melting capacity and process planning. The results are also compared to cold runner and hot runner injection molding of tensile bars indicating preferred sustainability strategies. |
Proceedings Inclusion? |
Undecided |