About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Feedback Control Development for Glass Additive Manufacturing |
Author(s) |
Andre Bos, Douglas Meredith, John Bernardin, Robert Landers, Edward Kinzel, Alexander Rose, Zechariah Jibben |
On-Site Speaker (Planned) |
Andre Bos |
Abstract Scope |
Glass additive manufacturing (GLAMS) is an emerging technology with a wide range of applications in chemistry, biology, optical science and engineering. A custom laser-based glass 3D printer was developed and is being optimized to produce such hardware as chemical processing equipment, microfluidic systems, as well as optical elements (e.g, lenses and fiber optics). By utilizing a standard robotic gantry system, infrared radiation-based thermal sensors, and a CO2 laser to heat glass filament to its softening temperature, glass can be extruded into various complex shapes. If the laser overheats the deposited glass, undesired defects can form in the glass, deteriorating its optical and mechanical properties. To mitigate these undesired defects, a glass temperature feedback control system is being developed. A PI closed-loop feedback algorithm is fed temperature data from a pyrometer and outputs a variable duty cycle to change the power of the CO2 laser. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |