A simple structure laser three-focus scheme for thick glass separation

As a commonly used structural material, the separation quality of thick glass has always been concerned. The current mechanical cutting methods used for thick glass not only are inefficient but also require subsequent polishing. A laser three-focus scheme (LTFS) was proposed in this paper to achieve...

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Autores principales:	Jianjun Yang, Jinye Wei, Decheng Zhang, Xinjian Pan, Lingling Shui, Mingliang Jin, Ronghong Che, Yonghao Liu
Formato:	article
Lenguaje:	EN
Publicado:	AIP Publishing LLC 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/fe1789916b56444ea63ea5d9ae7bc8a3
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spelling	oai:doaj.org-article:fe1789916b56444ea63ea5d9ae7bc8a32021-12-01T18:52:05ZA simple structure laser three-focus scheme for thick glass separation2158-322610.1063/7.0000533https://doaj.org/article/fe1789916b56444ea63ea5d9ae7bc8a32021-11-01T00:00:00Zhttp://dx.doi.org/10.1063/7.0000533https://doaj.org/toc/2158-3226As a commonly used structural material, the separation quality of thick glass has always been concerned. The current mechanical cutting methods used for thick glass not only are inefficient but also require subsequent polishing. A laser three-focus scheme (LTFS) was proposed in this paper to achieve high-quality and efficient separation. A confirmatory experiment and optical simulations have been carried out to confirm the correctness of the scheme. A finite element simulation model for LTFS separating low-iron glass was established, which analyzes the temperature and stress distributions. The fracture mechanism of glass was revealed by combining the crack morphology and thermal stress distribution. The experimental results demonstrate that the LTFS can perform high-quality separation of low-iron glass with a thickness of 20 mm, the width of kerfs is less than 25 µm, and the rms roughness is less than 5.5 nm. The separated sidewall is smooth and flat, without any unexpected defects, such as damage and cracks, and the subsequent polishing is not required.Jianjun YangJinye WeiDecheng ZhangXinjian PanLingling ShuiMingliang JinRonghong CheYonghao LiuAIP Publishing LLCarticlePhysicsQC1-999ENAIP Advances, Vol 11, Iss 11, Pp 115001-115001-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Jianjun Yang Jinye Wei Decheng Zhang Xinjian Pan Lingling Shui Mingliang Jin Ronghong Che Yonghao Liu A simple structure laser three-focus scheme for thick glass separation
description	As a commonly used structural material, the separation quality of thick glass has always been concerned. The current mechanical cutting methods used for thick glass not only are inefficient but also require subsequent polishing. A laser three-focus scheme (LTFS) was proposed in this paper to achieve high-quality and efficient separation. A confirmatory experiment and optical simulations have been carried out to confirm the correctness of the scheme. A finite element simulation model for LTFS separating low-iron glass was established, which analyzes the temperature and stress distributions. The fracture mechanism of glass was revealed by combining the crack morphology and thermal stress distribution. The experimental results demonstrate that the LTFS can perform high-quality separation of low-iron glass with a thickness of 20 mm, the width of kerfs is less than 25 µm, and the rms roughness is less than 5.5 nm. The separated sidewall is smooth and flat, without any unexpected defects, such as damage and cracks, and the subsequent polishing is not required.
format	article
author	Jianjun Yang Jinye Wei Decheng Zhang Xinjian Pan Lingling Shui Mingliang Jin Ronghong Che Yonghao Liu
author_facet	Jianjun Yang Jinye Wei Decheng Zhang Xinjian Pan Lingling Shui Mingliang Jin Ronghong Che Yonghao Liu
author_sort	Jianjun Yang
title	A simple structure laser three-focus scheme for thick glass separation
title_short	A simple structure laser three-focus scheme for thick glass separation
title_full	A simple structure laser three-focus scheme for thick glass separation
title_fullStr	A simple structure laser three-focus scheme for thick glass separation
title_full_unstemmed	A simple structure laser three-focus scheme for thick glass separation
title_sort	simple structure laser three-focus scheme for thick glass separation
publisher	AIP Publishing LLC
publishDate	2021
url	https://doaj.org/article/fe1789916b56444ea63ea5d9ae7bc8a3
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A simple structure laser three-focus scheme for thick glass separation

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