About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
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Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Monolithic Glass Forming using Laser Heated Sculpting |
Author(s) |
Nishan Khadka, Balark Tiwari, Todd Sparks, Robert Landers, Edward C. Kinzel |
On-Site Speaker (Planned) |
Nishan Khadka |
Abstract Scope |
Additive manufacturing of optics is highly desirable across various applications due to its ability to create complex features, accommodate a wide range of materials, and incorporate digital fabrication. This paper presents a novel method of digital glass forming that utilizes localized heating and glass redistribution to create intricate geometries. In this process, glass substrates are positioned relative to a fixed CO2 laser beam using precision 4-axis CNC stages. A stationary graphite forming tool applies stress to the laser-heated region displacing the glass via controlled plowing. This approach is studied for shaping simple optical forms. There are lower compositional changes in the glass than when it is processed at the temperatures associated with melting. The effects of the trajectory of the forming tool relative to the glass and temperature on the final geometry are studied experimentally. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |