FEM SIMULATIONS OF CONTINUOUS WAVE LASER MACHINING PROCESSES ON A 3-AXIS MILLING MACHINE.
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Ημερομηνία
2025-07-11
Συγγραφείς
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
ΕΛΜΕΠΑ, Σχολή Μηχανικών (ΣΜΗΧ), Τμήμα Ηλεκτρονικών Μηχανικών
Επιβλέπων
Περίληψη
This study explores the modeling and simulations of laser-metal interactions using a high-power
Continuous Wave (CW) fiber laser system. Advanced thermal-structural finite element method
(FEM) simulations, which provide detailed analyses of the laser-material interaction process, are
employed. Temperature gradients, displacement fields, stress and strain evolution and
distributions, are simulated to provide insights into the dynamic material response from low to
high (2kW) energy regimes. By simulating both elastoplastic and thermal effects from elastic to
ablation regimes, the study identifies critical process thresholds, including the required laser power
density and irradiation duration for static and dynamic laser machining applications such as
marking, etching, engraving, and cutting. The models follow the experimental setup which
integrates a 2 kW TRUMPF CW laser assembled with a 3-axis CNC milling machine through a
specialized optical system. The simulation results are compared with CW laser machining
experimental results performed in parallel by S. Kamposos whose thesis was performed in
collaboration with A. Gosta. The contributions of this work expand the knowledge base for
developing predictive modeling techniques in laser manufacturing processes and optimizing their
industrial applications.
Περιγραφή
Λέξεις-κλειδιά
Lasers in machining and manufacturing, FEM modeling and simulations, Diagnostics, FEM models and simulation results