Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding

In this study a continuous wave Ytterbium-doped Yttrium Aluminum Garnet (Yb: YAG) disk laser has been used for welding of AlMg3 casted alloy. A high-speed imaging camera has been employed to record hot vapor plume features during the process. The purpose was to identify a mechanism of pores detectio...

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Autores principales:	Sabin Mihai, Diana Chioibasu, Muhammad Arif Mahmood, Liviu Duta, Marc Leparoux, Andrei C. Popescu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	laser welding high-speed imaging aluminum-magnesium alloys porosity control hot vapor Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/a3c6c99d8fa44ab2965d704119b71139
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spelling	oai:doaj.org-article:a3c6c99d8fa44ab2965d704119b711392021-11-25T18:22:35ZReal-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding10.3390/met111118772075-4701https://doaj.org/article/a3c6c99d8fa44ab2965d704119b711392021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1877https://doaj.org/toc/2075-4701In this study a continuous wave Ytterbium-doped Yttrium Aluminum Garnet (Yb: YAG) disk laser has been used for welding of AlMg3 casted alloy. A high-speed imaging camera has been employed to record hot vapor plume features during the process. The purpose was to identify a mechanism of pores detection in real-time based on correlations between metallographic analyses and area/intensity of the hot vapor in various locations of the samples. The pores formation and especially the position of these pores had to be kept under control in order to weld thick samples. Based on the characterization of the hot vapor, it has been found that the increase of the vapor area that exceeded a threshold value (18.5 ± 1 mm<sup>2</sup>) was a sign of pores formation within the weld seam. For identification of the pores’ locations during welding, the monitored element was the hot vapor intensity. The hot vapor core spots having a grayscale level reaching 255 was associated with the formation of a local pore. These findings have been devised based on correlation between pores placement in welds cross-section microscopy images and the hot vapor plume features in those respective positions.Sabin MihaiDiana ChioibasuMuhammad Arif MahmoodLiviu DutaMarc LeparouxAndrei C. PopescuMDPI AGarticlelaser weldinghigh-speed imagingaluminum-magnesium alloysporosity controlhot vaporMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1877, p 1877 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	laser welding high-speed imaging aluminum-magnesium alloys porosity control hot vapor Mining engineering. Metallurgy TN1-997
spellingShingle	laser welding high-speed imaging aluminum-magnesium alloys porosity control hot vapor Mining engineering. Metallurgy TN1-997 Sabin Mihai Diana Chioibasu Muhammad Arif Mahmood Liviu Duta Marc Leparoux Andrei C. Popescu Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding
description	In this study a continuous wave Ytterbium-doped Yttrium Aluminum Garnet (Yb: YAG) disk laser has been used for welding of AlMg3 casted alloy. A high-speed imaging camera has been employed to record hot vapor plume features during the process. The purpose was to identify a mechanism of pores detection in real-time based on correlations between metallographic analyses and area/intensity of the hot vapor in various locations of the samples. The pores formation and especially the position of these pores had to be kept under control in order to weld thick samples. Based on the characterization of the hot vapor, it has been found that the increase of the vapor area that exceeded a threshold value (18.5 ± 1 mm<sup>2</sup>) was a sign of pores formation within the weld seam. For identification of the pores’ locations during welding, the monitored element was the hot vapor intensity. The hot vapor core spots having a grayscale level reaching 255 was associated with the formation of a local pore. These findings have been devised based on correlation between pores placement in welds cross-section microscopy images and the hot vapor plume features in those respective positions.
format	article
author	Sabin Mihai Diana Chioibasu Muhammad Arif Mahmood Liviu Duta Marc Leparoux Andrei C. Popescu
author_facet	Sabin Mihai Diana Chioibasu Muhammad Arif Mahmood Liviu Duta Marc Leparoux Andrei C. Popescu
author_sort	Sabin Mihai
title	Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding
title_short	Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding
title_full	Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding
title_fullStr	Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding
title_full_unstemmed	Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding
title_sort	real-time defects analyses using high-speed imaging during aluminum magnesium alloy laser welding
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a3c6c99d8fa44ab2965d704119b71139
work_keys_str_mv	AT sabinmihai realtimedefectsanalysesusinghighspeedimagingduringaluminummagnesiumalloylaserwelding AT dianachioibasu realtimedefectsanalysesusinghighspeedimagingduringaluminummagnesiumalloylaserwelding AT muhammadarifmahmood realtimedefectsanalysesusinghighspeedimagingduringaluminummagnesiumalloylaserwelding AT liviuduta realtimedefectsanalysesusinghighspeedimagingduringaluminummagnesiumalloylaserwelding AT marcleparoux realtimedefectsanalysesusinghighspeedimagingduringaluminummagnesiumalloylaserwelding AT andreicpopescu realtimedefectsanalysesusinghighspeedimagingduringaluminummagnesiumalloylaserwelding
_version_	1718411276721324032

Real-Time Defects Analyses Using High-Speed Imaging during Aluminum Magnesium Alloy Laser Welding

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