| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Methodology for Material Selection of Optimal Additive Manufactured Alloys and Parameter Sets for Space Optical Instruments |
| Author(s) |
Zachary Post, Walter R. Zimbeck, Steven M. Storck, Floris van Kempen, Gerard C. J. Otter, John D. Boldt, Ludger van der Laan, Steven R. Szczesniak, Ryan H. Carter, Robert K. Mueller, Salahudin M. Nimer, Doug Trigg, Michael A. Berkson, Frank Morgan, William Swartz |
| On-Site Speaker (Planned) |
Zachary Post |
| Abstract Scope |
A methodology for selecting an optimal additive manufactured (AM) alloy and associated laser parameter set was developed to identify a specific aluminum alloy for laser powder bed fusion (L-PBF) production of parts of the Compact Hyperspectral Air Pollution Sensor (CHAPS). Alloys with higher strength than standard L-PBF AlSi10Mg alloy (7A77, A20X, Scalmalloy, and 6061-RAM2C) were identified and compared over several rounds of testing to find the optimal combination of material and parameters. Round 1 verified sufficient density and tensile properties could be achieved. Round 2 confirmed which laser parameters produced representative CHAPS geometries with high print quality. Round 3 measured build orientation anisotropy and compatibility of material with mirror processing steps. Utilizing weighted criteria specific to CHAPS, test results were binned into categories and the final quality score was calculated. Scalmalloy produced the best quality score and was used to produce a tensile B-basis, topology optimized housings and lightweighted mirrors. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Characterization |