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Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes

In this paper we describe a novel spectroscopic closed loop control system capable of stabilizing the penetration depth during laser welding processes by controlling the laser power. Our novel approach is to analyze the optical emission from the laser generated plasma plume above the keyhole, to cal...

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Autores principales: Sibillano, Teresa, Rizzi, Domenico, Mezzapesa, Francesco P., Lugarà, Pietro Mario, Konuk, Ali Riza, Aarts, Ronald, Veld, Bert Huis in 't, Ancona, Antonio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3472874/
https://www.ncbi.nlm.nih.gov/pubmed/23112646
http://dx.doi.org/10.3390/s120811077
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author Sibillano, Teresa
Rizzi, Domenico
Mezzapesa, Francesco P.
Lugarà, Pietro Mario
Konuk, Ali Riza
Aarts, Ronald
Veld, Bert Huis in 't
Ancona, Antonio
author_facet Sibillano, Teresa
Rizzi, Domenico
Mezzapesa, Francesco P.
Lugarà, Pietro Mario
Konuk, Ali Riza
Aarts, Ronald
Veld, Bert Huis in 't
Ancona, Antonio
author_sort Sibillano, Teresa
collection PubMed
description In this paper we describe a novel spectroscopic closed loop control system capable of stabilizing the penetration depth during laser welding processes by controlling the laser power. Our novel approach is to analyze the optical emission from the laser generated plasma plume above the keyhole, to calculate its electron temperature as a process-monitoring signal. Laser power has been controlled by using a quantitative relationship between the penetration depth and the plasma electron temperature. The sensor is able to correlate in real time the difference between the measured electron temperature and its reference value for the requested penetration depth. Accordingly the closed loop system adjusts the power, thus maintaining the penetration depth.
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spelling pubmed-34728742012-10-30 Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes Sibillano, Teresa Rizzi, Domenico Mezzapesa, Francesco P. Lugarà, Pietro Mario Konuk, Ali Riza Aarts, Ronald Veld, Bert Huis in 't Ancona, Antonio Sensors (Basel) Article In this paper we describe a novel spectroscopic closed loop control system capable of stabilizing the penetration depth during laser welding processes by controlling the laser power. Our novel approach is to analyze the optical emission from the laser generated plasma plume above the keyhole, to calculate its electron temperature as a process-monitoring signal. Laser power has been controlled by using a quantitative relationship between the penetration depth and the plasma electron temperature. The sensor is able to correlate in real time the difference between the measured electron temperature and its reference value for the requested penetration depth. Accordingly the closed loop system adjusts the power, thus maintaining the penetration depth. Molecular Diversity Preservation International (MDPI) 2012-08-09 /pmc/articles/PMC3472874/ /pubmed/23112646 http://dx.doi.org/10.3390/s120811077 Text en © 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Sibillano, Teresa
Rizzi, Domenico
Mezzapesa, Francesco P.
Lugarà, Pietro Mario
Konuk, Ali Riza
Aarts, Ronald
Veld, Bert Huis in 't
Ancona, Antonio
Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes
title Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes
title_full Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes
title_fullStr Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes
title_full_unstemmed Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes
title_short Closed Loop Control of Penetration Depth during CO(2) Laser Lap Welding Processes
title_sort closed loop control of penetration depth during co(2) laser lap welding processes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3472874/
https://www.ncbi.nlm.nih.gov/pubmed/23112646
http://dx.doi.org/10.3390/s120811077
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