Method for splitting glass by nanosecond laser
The invention relates to the field of material laser processing technology, in particular to a nanosecond laser glass splitting method which comprises the following steps: forming an initial damaged surface: focusing a laser beam on a transparent glass workpiece, and generating irreversible crack da...
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Format | Patent |
Language | Chinese English |
Published |
08.03.2022
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Abstract | The invention relates to the field of material laser processing technology, in particular to a nanosecond laser glass splitting method which comprises the following steps: forming an initial damaged surface: focusing a laser beam on a transparent glass workpiece, and generating irreversible crack damage and residual stress in the transparent glass workpiece through the laser beam to form the initial damaged surface; each pulse of the laser beam can generate a single slender irreversible initial damage, and the laser beam is controlled to form an initial damage surface on the transparent glass workpiece along a scanning track; induction of initial damage expansion: scanning again along the scanning track in the step 1 by using a carbon dioxide laser beam, inducing cracks of the initial damage surface to expand under the action of residual stress through heating, gradually expanding and connecting discontinuous single damage in the initial damage surface to form macroscopic gaps, and forming the initial damage |
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AbstractList | The invention relates to the field of material laser processing technology, in particular to a nanosecond laser glass splitting method which comprises the following steps: forming an initial damaged surface: focusing a laser beam on a transparent glass workpiece, and generating irreversible crack damage and residual stress in the transparent glass workpiece through the laser beam to form the initial damaged surface; each pulse of the laser beam can generate a single slender irreversible initial damage, and the laser beam is controlled to form an initial damage surface on the transparent glass workpiece along a scanning track; induction of initial damage expansion: scanning again along the scanning track in the step 1 by using a carbon dioxide laser beam, inducing cracks of the initial damage surface to expand under the action of residual stress through heating, gradually expanding and connecting discontinuous single damage in the initial damage surface to form macroscopic gaps, and forming the initial damage |
Author | HUANG YU FAN XINHU HU MING ZHANG GUOJUN RONG YOUMIN |
Author_xml | – fullname: HUANG YU – fullname: RONG YOUMIN – fullname: HU MING – fullname: FAN XINHU – fullname: ZHANG GUOJUN |
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DocumentTitleAlternate | 一种纳秒激光劈裂玻璃方法 |
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Notes | Application Number: CN202111618105 |
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RelatedCompanies | ZHEJIANG HUAWISHAN RUSH INTELLIGENT EQUIPMENT TECHNOLOGY CO., LTD SCIENCE AND TECHNOLOGY UNIVERSITY IN CHINA |
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Snippet | The invention relates to the field of material laser processing technology, in particular to a nanosecond laser glass splitting method which comprises the... |
SourceID | epo |
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SubjectTerms | CHEMISTRY GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL |
Title | Method for splitting glass by nanosecond laser |
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