| 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 |
Investigation of the Influence of Process Parameters to Increase Productivity in the LPBF Process for the Material Inconel 718 |
| Author(s) |
Christian Bodger, Stefan Gnaase, Dennis Lehnert, Thomas Tröster |
| On-Site Speaker (Planned) |
Christian Bodger |
| Abstract Scope |
The nickel-based alloy Inconel 718, which is used in aerospace technology, poses a great challenge to machining due to its high work hardening and toughness. Here, the LPBF process offers an alternative with potantial savings if sufficiently high productivity can be achieved. Based on the parameter study carried out, starting from the standard parameters for the production of components exposure parameters could be developed to realize manufacturing with 120 μm and 150 μm layer thickness. For this purpose, the process parameters of laser power, focus diameter, hatch distance and scan speed were varied. The negative defocusing of the laser showed a positive effect on the density of the parts, realizing densities ≥ 99.94 %, with high dimensional stability and good mechanical properties. Considering the reduced manufacturing time of up to 61 %, a significant increase in productivity was achieved. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |