| About this Abstract |
| Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Presentation Title |
Temperature Control of Digital Glass Forming Processes |
| Author(s) |
Balark Tiwari, Yujun Zhou, Nishan Khadka, Andre Bos, Douglas Meredith, John Bernardin, Edward Kinzel, Xiangliang Zhang, Robert Landers |
| On-Site Speaker (Planned) |
Balark Tiwari |
| Abstract Scope |
Digital Glass Forming is a manufacturing process that uses a laser to heat glass, creating a workable zone that can be shaped with tools or by feeding glass filament or fiber into the zone to add material. This method allows for precise forming of glass into desired geometries. However, variations in scan speed, filament feed rate, part geometry, etc. affect the thermal process, complicating the selection of the laser power necessary to achieve uniform temperature distribution and consistent morphology. This paper introduces a feedback temperature controller that adjusts the laser power based on feedback from a thermal camera to maintain a constant maximum temperature. The feedback controller is then augmented with a data-driven machine learning model that is used to predict melt pool temperature, enabling feedforward control capabilities. Experimental studies are conducted to evaluate the effectiveness of these control methodologies when depositing straight tracks, square structures, and multi-layered chimney structures. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |