| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Gas Flow and Delivered Laser Power Effects on Mechanical Properties |
| Author(s) |
Joy Gockel, Edwin Glaubitz, Clay Perbix, Sage Frontella, Allan Huntington, Ryan Fishel, Jeff Shaffer |
| On-Site Speaker (Planned) |
Joy Gockel |
| Abstract Scope |
Reducing process variability to achieve predictable and repeatable part performance is necessary to accomplish successful machine qualification of AM technology. Machine processing variables (e.g.- gas flow) and laser window contamination by process byproducts lead to within-build and build-to-build anomalies that are currently unexplained and hinder the translation of processing knowledge from one build, or one machine, to another. This work investigates a measured grid of gas flow and laser power and relates to material structure and mechanical properties. Investigated structure and properties include microstructural characteristics, surface features (protrusions vs notches), forms of porosity (interlayer, spatter, sub contour, etc.), tensile strength and fatigue life. The outcome of this work will identify additional process metrology needs, monitoring requirements, and processing pedigree documentation that must be included in AM qualification standards. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |