| About this Abstract |
| Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Presentation Title |
On-line Melt Pool and Microstructure Sensing of Powder Bed Fusion Grade 91 Stainless Steel |
| Author(s) |
Nathan J. Kizer, Christopher Kube, Abdalla Nassar , Edward Reutzel, Corey Dickman |
| On-Site Speaker (Planned) |
Christopher Kube |
| Abstract Scope |
Research into on-line techniques for monitoring metallic additive manufacturing (AM) processes and parts continues to grow. The demand for on-line monitoring stems partially from the need to better understand the thermophysical processes leading to high quality parts. Additionally, moving quality control procedures on-line potentially shortens the amount of time required to adopt the part into a functional system.<br><br>
This presentation reports on recent progress of integrating ultrasonic sensors into a powder bed fusion system. The integration was accomplished through redesigning the build substrate to incorporate an array of sensors. The sensor array allows for several AM parts to be monitored during builds. The ultrasonic system was used for on-line monitoring of powder bed fusion Gr91 stainless steel parts. The presentation will highlight measurement results of (1) melt pool dynamics during the first several build layers and (2) sensing microstructure differences amongst multiple parts being built with different processing parameters. |
| Proceedings Inclusion? |
Undecided |