|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Nano/Micro-mechanics and Length-scale Phenomena
||Temperature field evolution during the SLM process of AlSi10Mg
||Sara Ricci, Nicola Bonora, Gabriel Testa, Gianluca Iannitti
|On-Site Speaker (Planned)
Additive manufactured parts are subjected to intense thermal gradients and high temperature peaks which affect mechanical properties. Such thermal cycles can cause distortions, residual stress and microstructural heterogeneities. Since the experimental measurement of the temperature field is extremely difficult, numerical simulation can be used to obtain a description of the phenomenon. Here, a three-dimensional numerical model for the prediction of the temperature field during SLM process on AlSi10Mg alloy was developed. The model was implemented in a FEM code to reproduce the scan path, the geometry of the heat source and the progressive generation of the part during the process. This approach was used in a small scale representation, as the extremely fast temperature gradients, high scanning speeds and amount of thermal energy input make the phenomenon extremely localized. The predicted melt pool size, compared with microstructural analysis (SEM) results on reference samples, was used to validate the model.
||Additive Manufacturing, Modeling and Simulation, Process Technology