| About this Abstract |
| Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
|
| Symposium
|
Materials
|
| Presentation Title |
Investigation Towards AlSi10Mg Powder Recycling Behavior in the LPBF Process and Its Influences on Mechanical Properties |
| Author(s) |
Christian Weiss, Juri Munk, Constantin Leon Haefner |
| On-Site Speaker (Planned) |
Christian Weiss |
| Abstract Scope |
Parts fabricated by Laser Powder Bed Fusion (LPBF) technique allow for a high material utilization of a single powder batch, since unfused powder material can be reworked and reused in subsequent manufacturing jobs. Due to process induced spatters however, the properties of the powder may change during recycling, which in turn can affect the mechanical properties of built parts. Therefore, more investigations on the recyclability of the powder material are needed. Within this work, the powder ageing behavior of the lightweight aluminum alloy AlSi10Mg in the LPBF process is investigated. A standard build job is developed and built with ageing powder in 10 consecutive jobs with no refreshing between the cycles. The powder properties as well as the mechanical properties at static load for standing and lying samples are investigated. The comprehensive analyses suggest that the powder coarsening may lead to improved mechanical properties during recycling for AlSi10Mg. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |