| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Developing Predictive Capabilities
|
| Presentation Title |
On the Fatigue Properties of Additively Manufactured Materials Processed at Non-optimal Conditions |
| Author(s) |
Thomas Niendorf |
| On-Site Speaker (Planned) |
Thomas Niendorf |
| Abstract Scope |
Powder bed additive manufacturing (AM) is used for fabrication of many high-performance parts. Assessment of structural integrity of such parts is of utmost importance and any kind of process induced imperfection has crucially to be avoided. Thus, only a part built in a perfect AM scenario, i.e., established without any process instability, is considered for application. This strict limitation is not to be transferred to every envisaged application. Using the two most common AM processes, i.e., electron beam- and laser-based powder bed fusion, different scenarios were assessed. In case of both AM processes metal powders were employed not being perfectly spherical in shape. Furthermore, AM processes were stopped and continued afterwards. Finally, AM parts of different build orientation were joined. Results show that non-optimal conditions are not an insuperable roadblock to several envisaged applications such that the processing windows for many parts are much larger than expected so far. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Process Technology |