| Title |
Evaluation of Thin-wall Structures and Inconel 718 Characteristics with Pulse Wave Mode in L-PBF |
| DOI |
https://doi.org/10.5370/KIEE.2024.73.5.871 |
| Keywords |
Additive Manufacturing; Laser-Powder Bed Fusion(L-PBF); Pulse Wave; Continuous Wave; Thin-wall |
| Abstract |
Recent advances in additive manufacturing technology have made it possible to produce components with complex geometric structures using the Laser Powder Bed Fusion(L-PBF) process. However, there are still limitations when manufacturing extreme geometric shapes, such as thin wall. The thin walls are vulnerable to thermal deformation due to local heat accumulation in L-PBF.
In this study, we applied a pulse mode with low thermal effect to manufacture ultra thin-wall structures using Inconel 718 in L-PBF and manufacturing characteristics were compared with the continuous wave emission mode. Then the process and mechanical properties of the pulse mode were analyzed through unit specimens and tensile specimens. |