Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals

Ultrafast lasers micromachining results depend on both the processing parameters and the material properties. The obtained thermal effects are negligible if a good combination of processing parameters is chosen. However, optimizing the processing parameters leading to the required surface quality on...

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Autores principales:	Liliana Cangueiro, José Antonio Ramos-de-Campos, David Bruneel
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ultrafast laser processing heat accumulation femtosecond laser Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/1a0b96d47a2b4b7e84f6e094ce71d3b6
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spelling	oai:doaj.org-article:1a0b96d47a2b4b7e84f6e094ce71d3b62021-11-11T18:21:49ZPrediction of Thermal Damage upon Ultrafast Laser Ablation of Metals10.3390/molecules262163271420-3049https://doaj.org/article/1a0b96d47a2b4b7e84f6e094ce71d3b62021-10-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6327https://doaj.org/toc/1420-3049Ultrafast lasers micromachining results depend on both the processing parameters and the material properties. The obtained thermal effects are negligible if a good combination of processing parameters is chosen. However, optimizing the processing parameters leading to the required surface quality on a given material can be quite complex and time consuming. We developed a semi-empirical model to estimate the heat accumulation on a surface as a function of the laser fluence, scanning speed and repetition rate. The simulation results were correlated with experimental ones on different materials, and compared with the transient temperature distributions calculated using an analytical solution to the heat transfer equation. The predictions of the proposed model allow evaluating the heat distribution on the surface, as well as optimizing the ultrafast laser micromachining strategy, yielding negligible thermal damage.Liliana CangueiroJosé Antonio Ramos-de-CamposDavid BruneelMDPI AGarticleultrafast laser processingheat accumulationfemtosecond laserOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6327, p 6327 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ultrafast laser processing heat accumulation femtosecond laser Organic chemistry QD241-441
spellingShingle	ultrafast laser processing heat accumulation femtosecond laser Organic chemistry QD241-441 Liliana Cangueiro José Antonio Ramos-de-Campos David Bruneel Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals
description	Ultrafast lasers micromachining results depend on both the processing parameters and the material properties. The obtained thermal effects are negligible if a good combination of processing parameters is chosen. However, optimizing the processing parameters leading to the required surface quality on a given material can be quite complex and time consuming. We developed a semi-empirical model to estimate the heat accumulation on a surface as a function of the laser fluence, scanning speed and repetition rate. The simulation results were correlated with experimental ones on different materials, and compared with the transient temperature distributions calculated using an analytical solution to the heat transfer equation. The predictions of the proposed model allow evaluating the heat distribution on the surface, as well as optimizing the ultrafast laser micromachining strategy, yielding negligible thermal damage.
format	article
author	Liliana Cangueiro José Antonio Ramos-de-Campos David Bruneel
author_facet	Liliana Cangueiro José Antonio Ramos-de-Campos David Bruneel
author_sort	Liliana Cangueiro
title	Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals
title_short	Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals
title_full	Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals
title_fullStr	Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals
title_full_unstemmed	Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals
title_sort	prediction of thermal damage upon ultrafast laser ablation of metals
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1a0b96d47a2b4b7e84f6e094ce71d3b6
work_keys_str_mv	AT lilianacangueiro predictionofthermaldamageuponultrafastlaserablationofmetals AT joseantonioramosdecampos predictionofthermaldamageuponultrafastlaserablationofmetals AT davidbruneel predictionofthermaldamageuponultrafastlaserablationofmetals
_version_	1718431808922583040

Prediction of Thermal Damage upon Ultrafast Laser Ablation of Metals

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