| Scope |
Additive manufacturing (AM) typically occurs with the interactions between energy sources and materials across broad spatiotemporal regimes. Depending on the specific AM technique, energy input can be enabled by laser/electron beams, plasma/electric arc, UV light, lamp irradiation, thermal heat, etc., while materials can be provided in the form of powder particles, wire, ink, etc. Energy can interact with feedstocks during one-step AM, such as laser/electron/lamp with powder particles in powder bed fusion, laser/electron/plasma/arc beam with wire/powder in directed energy deposition, etc. Also, the interactions may take place during multi-step AM, e.g., heat energy for sintering metal/ceramic particles shaped by material extrusion, binder jetting, or ink writing. These energy-matter interactions govern the resultant dimensions, multi-scale structures, and thereby properties and performance of the as-built components. Understanding these interactions is required to control the AM processes and achieve the desired components of practical interests. This symposium will focus on research advances in energy-matter interactions in the AM paradigm to drive the design, innovation, and application of AM processes. Specific topics of interest include, but are not limited to:
• Interactions between laser/electron/lamp and metal/polymer/composite particles in powder bed fusion.
• Interactions between laser/electron/plasma arc and wire/powder particles in directed energy deposition.
• Interactions between sintering heat energy and particles in material extrusion, binder jetting, or ink writing.
• Interactions between external energy (e.g., acoustic/ultrasonic/magnetic/thermal) and ink/paste in energy-assisted ink writing/jetting.
• Multi-scale modeling and simulation to understand the underlying physics behind energy-matter interactions.
• In situ characterization and measurement of energy-matter interactions in AM.
• AM process innovation by the unique energy-matter interactions. |