About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Time-Resolved Analysis of Droplet Ejection in rollLIFT: A Roll-to-Roll Laser-Based Metal AM Process |
| Author(s) |
Kaushlendra Singh, Atieh Moridi |
| On-Site Speaker (Planned) |
Atieh Moridi |
| Abstract Scope |
We present rollLIFT, a novel drop-on-demand additive manufacturing (AM) technology that adapts laser-induced forward transfer (LIFT) into a continuous roll-to-roll format. In this work, we employ time-resolved imaging to investigate the interaction between nanosecond pulsed lasers and commercially available aluminum sheet feedstock in the context of drop-on-demand printing. Specifically, we identify different ejection regimes and examine how key process parameters—such as laser fluence, pulse duration, and repetition rate—influence the characteristics of the ejected droplets. Time-resolved imaging is complemented by post-mortem characterization of both donor and acceptor substrates to elucidate the underlying ejection mechanisms. Additionally, we explore the dynamics of droplet–acceptor interaction and assess the limits of the technology in terms of achievable print resolution. Leveraging these insights, we optimize the printing parameters to fabricate simple, connected metal structures, demonstrating the viability of rollLIFT as an emerging metal AM technology. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, |