| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
Investigation of the Keyhole and Molten Pool Stability in Laser Welding Process Depending on Intensity Distribution of Dual Beam |
| Author(s) |
Juyeong Lee, Jin-young Kim, Junmyoung Jang, Taehwan Ko, Jaeheon Lee, Geonmin Kim, Seung Hwan Lee |
| On-Site Speaker (Planned) |
Juyeong Lee |
| Abstract Scope |
In this study, a numerical model of laser welding process of aluminum alloys using dual beam laser was developed to investigate the keyhole and molten pool behaviors depending on the intensity distribution of the laser beam. In the developed model, the coupled study of heat transfer and fluid flow was conducted to analyze the keyhole and molten pool behaviors. The core and ring beams in the model were set by adjusting the intensity distributions. The model was validated by comparing the geometry of the molten pool calculated from the model and the weld cross-sections obtained from welding experiments. Based on the developed model, the keyhole and molten pool behaviors were analyzed according to the intensity distribution of the core and ring beams. Furthermore, the optimal condition of the intensity distribution which can stabilize the keyhole and molten pool was proposed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Process Technology, Aluminum |