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)
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Presentation Title |
Hybrid Laser Powder Bed Fusion Additive Manufacturing: Application to Microwave Radio Frequency Quarter Wave Cavity Resonators |
Author(s) |
Alexander R. Riensche, Paul Carriere, Ziyad Sm, And Menendez, Pedro Frigola, Sergey Kutsaev, Aurora Araujo, Nanda Matavalam, Prahalada Rao |
On-Site Speaker (Planned) |
Alexander R. Riensche |
Abstract Scope |
Radio frequency (RF) components are intricate, high-value components. Conventional manufacturing of RF components imposes two bottlenecks: cumbersome assembly of multiple parts that are produced with different processes, and lack of flexibility to rapidly customize design for targeting specific RF bandwidths. Laser powder bed fusion (LPBF) is an attractive solution to make RF components given its ability to accommodate design complexity and dimensional accuracy. However, a main impediment in LPBF is its poor surface finish. In this work, we apply a hybrid-LPBF approach for making aluminum alloy RF resonators. The key idea is to use in-situ layer-wise machining to enable high quality surface finish on hard-to-access surfaces which are difficult, if not impossible, to machine or polish post-LPBF. Hybrid-LPBF is shown to improve resonator RF performance (Q-factor) by enhancing both dimensional accuracy and surface finish. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |