About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Material Evaluation Framework of Additive Manufactured Aluminum Alloys 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 H. Swartz |
On-Site Speaker (Planned) |
Zachary Post |
Abstract Scope |
A framework for additive manufactured alloy selection was developed to determine the preferred aluminum material for the Compact Hyperspectral Air Pollution Sensor (CHAPS). A number of high strength laser powder bed fusion (L-PBF) aluminum alloys have become commercially available with much higher tensile strength than the standard L-PBF AlSi10Mg alloy. These alloys (7A77, A20X, Scalmalloy, and 6061-RAM2C) were compared by defining weighted CHAPS-specific criteria and binning test results into scoring categories to produce a quality score for each alloy and parameter set. Round 1 identified parameter sets that produced material with high density and tensile properties. Round 2 focused on print quality of the seven best parameter sets using geometries representative of CHAPS design features. Round 3 assessed build orientation anisotropy and compatibility with mirror processing steps of the best laser parameter set. Scalmalloy had the best quality score and was used to print topology optimized housings and lightweighted mirrors. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |