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ARTICLE
Moment-curvature relation for laser-assisted bending of thin Inconel 718 beam
1
Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
2
Institute of Structural Analysis, Poznan University of Technology, Poznan, Poland
3
Center for Laser Technology of Metals, Kielce University of Technology, Kielce, Poland
Submission date: 2024-12-12
Final revision date: 2025-01-24
Acceptance date: 2025-02-20
Publication date: 2025-06-23
Corresponding author
Jacek Widlaszewski
Department of Experimental Mechanics, Institute of Fundamental Technological Research Polish Academy of Sciences, Poland
Department of Experimental Mechanics, Institute of Fundamental Technological Research Polish Academy of Sciences, Poland
KEYWORDS
TOPICS
ABSTRACT
Moment-curvature relations for the thermo-mechanical bending of slender beams made of Inconel 718 in the factory-annealed state are determined in the study. The experimentally validated finite element method (FEM) model with the Johnson–Cook material model is used. For the considered conditions of thermo-mechanical processing, the final beam curvature can be estimated as a linear function of the curvature due to the elastic pre-stress. In processing 1mm thick material, using laser power 500W and feed rate 3.33 mm/s, a safe time distance of at least 5.4 minutes is estimated between the presence of high material temperature and the start of precipitation processes.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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