| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture IV: Toward Confident Use in Critical Applications
|
| Presentation Title |
The Impact of Multi-laser Stitching on the High Cycle Fatigue Performance of Metal Alloys Printed Using LPBF |
| Author(s) |
Jacob Rindler, Edward Herderick, David Schick , Connor Slone, Antonio Ramirez, Michael Groeber |
| On-Site Speaker (Planned) |
Jacob Rindler |
| Abstract Scope |
The addition of multiple lasers to the powder bed fusion (LPBF ) process presents an excellent opportunity to print larger components whilst maintaining a positive business case. To date there has been very little published work done to understand the impact on fatigue life of components printed with multiple lasers (“stitched”). The author's presentation will cover two similar studies of commonly printed AM materials, nickel alloy 718 and aluminum alloy AlSi10Mg. Stitched and non-stitched high cycle fatigue lives are compared via axial fatigue testing of machined specimens that have undergone post process heat treatment and HIP densification processes. SEM and optical fractography results are analyzed alongside nondestructive testing and microstructural data to provide the attendees with an understanding of how multi-laser stitching affects the process-structure-property-performance relationship for these two commonly printed alloy systems. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |