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Article

Experimental and Simulation Analysis of Effects of Laser Bending on Microstructures Applied to Advanced Metallic Alloys

1
Instituto de Física, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
2
Centro de Investigación en Nanotecnología y Materiales Avanzados (CIEN-UC), Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
3
Departamento de Ingeniería Mecánica y Metalúrgica, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
4
Photonics Division, Instituto de Estudos Avançados, São José dos Campos 12228-001, SP, Brazil
*
Author to whom correspondence should be addressed.
Academic Editor: Gleb A. Turichin
Metals 2021, 11(2), 362; https://doi.org/10.3390/met11020362
Received: 27 January 2021 / Revised: 12 February 2021 / Accepted: 16 February 2021 / Published: 21 February 2021
(This article belongs to the Special Issue Laser Processing of Metals and Alloys)
The aim of this work is the analysis of laser beam forming (LBF) in the bending of two relevant materials used in the transportation industry—interstitial-free (IF) steel and AA6013 high-strength aluminum alloy. Our experiments and numerical simulations consider two different operating scenarios achieved by varying the laser beam scanning velocity using linear paths. The material behavior during this process is described via a coupled thermomechanical-plasticity-based formulation that allows prediction of temperature profiles and bending angles. Metallography, glow discharge optical emission spectroscopy, and X-ray diffraction are used for microstructure characterization. In addition, microstress analyses are performed in order to study the stress behavior of the irradiated zones. It is found that LBF mainly induces grain growth and melting in the case of high surface temperatures. Before melting, the materials developed compressive stresses that could be useful in preventing cracking failures. The resulting bending angles are predicted and experimentally validated, indicating the robustness of the model to estimate LBF effects on advanced alloys. The present analysis relating bending angles together with temperature and microstructure profiles along the thickness of the sheets is the main original contribution of this work, highlighting the need for further modeling refinement of the effects of LBF on advanced alloys to include more microstructural properties, such as grain boundary diffusion and surface roughness. View Full-Text
Keywords: laser beam forming; microstructure; interstitial-free steels; aluminum alloys; modeling and numerical simulation laser beam forming; microstructure; interstitial-free steels; aluminum alloys; modeling and numerical simulation
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MDPI and ACS Style

Ramos-Moore, E.; Hoffmann, J.; Siqueira, R.H.M.; Medeiros de Carvalho, S.; Fernandes de Lima, M.S.; Celentano, D.J. Experimental and Simulation Analysis of Effects of Laser Bending on Microstructures Applied to Advanced Metallic Alloys. Metals 2021, 11, 362. https://doi.org/10.3390/met11020362

AMA Style

Ramos-Moore E, Hoffmann J, Siqueira RHM, Medeiros de Carvalho S, Fernandes de Lima MS, Celentano DJ. Experimental and Simulation Analysis of Effects of Laser Bending on Microstructures Applied to Advanced Metallic Alloys. Metals. 2021; 11(2):362. https://doi.org/10.3390/met11020362

Chicago/Turabian Style

Ramos-Moore, Esteban, Joaquín Hoffmann, Rafael H. M. Siqueira, Sheila Medeiros de Carvalho, Milton S. Fernandes de Lima, and Diego J. Celentano. 2021. "Experimental and Simulation Analysis of Effects of Laser Bending on Microstructures Applied to Advanced Metallic Alloys" Metals 11, no. 2: 362. https://doi.org/10.3390/met11020362

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