About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
AI/Data Informatics: Computational Model Development, Verification, Validation, and Uncertainty Quantification
|
Presentation Title |
Machine Learning Towards Predicting Hot Crack Susceptibility |
Author(s) |
Mustafa Megahed, Klaus Buessenschuett, Philipp Stich, Markus Apel, Ludo Bautmans, Christian Haase |
On-Site Speaker (Planned) |
Mustafa Megahed |
Abstract Scope |
Laser processing of crack susceptible CM247LC is experimentally studied using different process parameters. Machine learning tools are applied to obtain regression models that would predict crack susceptibility as a function of process parameters. Despite using a relatively small data set of 208 points, good regression models were identified using support vector machine (SVM), polynomial regression and K-nearest neighbor regression with R2 scores of 0.89, 0.88 and 0.86 respectively. Applying the reverse regression models for 0 mm/mm^2 crack density yields parameter combinations of very low energy density, that either no melting occurs, or the melt pools are so small, that processing a complete part or specimen is not feasible. A compromise between feasible processibility and avoidance of hot cracking could be found. Avoiding hot cracking altogether was not possible. This presentation discusses how machine learning can guide process optimization if suitably informed about process knowledge. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, ICME, Machine Learning |