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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Molecular Diversity Preservation International (MDPI)
2012
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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. |
format | Online Article Text |
id | pubmed-3472874 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Molecular Diversity Preservation International (MDPI) |
record_format | MEDLINE/PubMed |
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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