I am pleased to share with you my presentation titled "Thermo-Mechanical Modeling of the Directed Energy Deposition (DED) Process for the Optimization of Deposition Strategies", which Mirna POGGI and I presented at the SIMULIA Regional User Meeting EuroMed – Italy in Modena on June 20, 2023.
Feel free to leave a comment or ask me a question via the comment section below.
Abstract:
Thermo-Mechanical Modeling of the Directed Energy Deposition (DED) Process for the Optimization of Deposition Strategies
The directed Energy Distribution (DED) process involves a continuous and subsequent deposition of layers by means of a laser heat source that melts the feedstock material supplied in the form of powders or wires. Laser power, powder flow rate, and travel speed affect temperature gradient distribution and residual stresses in components. Due to this, the main process parameters’ influence on DED process was investigated, followed by fine-tuning.
The main objective of this work was to compare four simulations with different scanning strategies for the to-be-printed component, focusing on deformation results. To achieve this objective, the 3DEXPERIENCE software was essential in simulating DED process accurately. Setting up the Finite Element Method (FEM) model, mesh type, material properties, and boundary conditions followed a strict procedure.
As a final step, once the best case in terms of deformations from a production perspective has been highlighted, the component is subjected to post-processing machining to respect the designed dimensioning and tolerances.
Presenters Biographies:
After attending the Liceo Scientifico Amedeo Avogadro in Rome, Mirna POGGI enrolled in Mechanical Engineering at La Sapienza University, graduating in 2017 with a grade of 104/110. Having relocated to Turin, she pursued her further studies by enrolling at the Polytechnic University of Turin in the International Mechanical Engineering program, during which she also spent a semester in Athens for an Erasmus+ scholarship. Mirna graduated in 2019 with a Master's in Mechanical Engineering, receiving a grade of 110 cum laude. In 2020, she began a research scholarship at the Polytechnic of Turin with Professor Salmi, who supervised her Master's thesis. In the same year, Marina started her Ph.D. in Management, Production and Design, where she is now a third-year student.
Mirna POGGI
PhD Student
Politecnico di Torino
Marco VALLONE, born in Turin, attended for five years at the ITIS Carlo Grassi in Turin until 2009. In 2014 he participated in the 1st level course "Ingegneria Meccanica" at the Polytechnic of Turin. At the end of this course, Marco worked on his thesis on fluid dynamic machines under the supervision of Prof. D. Misul. In 2020 he enrolled in the Master's "Mechanical Engineer" course at the Polytechnic of Turin.
Marco dedicates himself to his Master's thesis work on DED (Directed Energy Distribution) Additive Manufacturing Technology with the help of the IAM center of the Politecnico di Torino and Exemplar s.r.l., where he is currently working as an Application Engineer.
@MV
Application Engineer
Exemplar
Abaqus
