About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
Comparing Microstructure and Mechanical Properties of AlSi10Mg Alloy Produced by Laser Powder Bed Fusion and High Pressure Die Casting Processes |
Author(s) |
Indrajeet Katti, Mark Easton, Dong Qiu, Joy Forsmark, Matthew Barnett, Matthias Weiss |
On-Site Speaker (Planned) |
Mark Easton |
Abstract Scope |
Laser powder bed fusion (LPBF) is an upcoming manufacturing technology finding its place in mainstream manufacturing with some benefits over high-pressure die casting (HPDC). This study examines differences in the microstructure and mechanical properties of AlSi10Mg alloy produced by these processes. Plates with different thicknesses were manufactured by both technologies. The HPDC microstructure was much coarser than that seen in LPBF. Differences in eutectic structure, solute silicon levels, and dislocation density were detected. The plate thickness was found to have the opposite effect on the tensile properties of both manufacturing processes. The plate surface hardness of HPDC material was relatively high compared to the core. The opposite trend was observed in the LPBF samples. HPDC samples also showed greater tolerance to localised straining during tight radius bending than the LPBF samples. Substitution of LPBF for HPDC will require careful consideration of ductility requirements. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |