| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Large-scale Metallic Components
|
| Presentation Title |
A High Fidelity Melt Pool Dynamics Model with Experimental Validation Results under Various Laser Power Densities and Scanning Speeds |
| Author(s) |
Kyung-min Hong, Corbin Grohol, Yung C. Shin |
| On-Site Speaker (Planned) |
Yung C. Shin |
| Abstract Scope |
This presentation covers the high fidelity welding model developed to study the melt-pool dynamics with the consideration of relevant physics and laser beam absorption via multiple reflections in the keyhole using ray tracing. The high-fidelity welding model accounts for the effects of phase change, recoil pressure, and energy loss in the form of latent heat. The transport phenomena in both the condensed (solid and liquid) and non-condensed regions (metallic vapor and ambient gas) are calculated by the governing equations of mass, momentum, and energy. In addition, the high-fidelity welding model is unique in that it also solves the conservation equation of chemical species, which is coupled with the other conservation equations to track the distributions of metallic vapor in the plume. The simulated results are compared with various NIST benchmarking test results of Inconel 625 with different laser power levels and scanning speeds. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Modeling and Simulation, Joining |