About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
Extension of the Pass Scale Method for Simulating Laser Powder Bed Fusion Additive Manufacturing Microstructures |
| Author(s) |
Gregory D. Wong, Ioannis Dalezios, Nicholas L. Lamprinakos, Gregory S. Rohrer, Anthony D Rollett |
| On-Site Speaker (Planned) |
Gregory D. Wong |
| Abstract Scope |
Accurate simulation of laser powder bed fusion (LPBF) metal additive manufacturing is paramount to understanding process to property linkage. The high computational cost of most conventional methods is a major limiting factor in the amount of simulations that can be performed, which limits the application of uncertainty quantification. Shown here is an extension of the pass scale model which offers a computationally efficient alternative by simulating an entire melt track, rather than tracking the heat source incrementally. We use an assumed growth shape for solidification rather than tracking a solidification front. Previous versions of this model were limited to the Rosenthal model for the melt pool geometry. Here, we extend the Pass Scale model to use a more complex thermal model that allows for simulation of the relevant process space as opposed to only purely conduction mode melt pools. |