Laser ablation of PMMA in air, water, and ethanol environments
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Author list: Tangwarodomnukun V., Chen H.-Y.
Publisher: Taylor and Francis Group
Publication year: 2015
Journal: Materials and Manufacturing Processes (1042-6914)
Volume number: 30
Issue number: 5
Start page: 685
End page: 691
Number of pages: 7
ISSN: 1042-6914
eISSN: 1532-2475
Languages: English-Great Britain (EN-GB)
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Abstract
Liquid-assisted laser ablation technique has become an alternative method to reduce the thermal damage of work material induced by a laser. In this study, water and ethanol were employed as the liquid to aid the laser grooving of polymethyl methacrylate (PMMA) sheet. The whole workpiece was submerged in the liquid and ablated under the different laser powers. A clean and deep groove can be fabricated when the PMMA was machined in the ethanol, while the ablation in water can introduce the smallest heat-affected zone compared to the air and ethanol environments. To realize the laser grooving performance, the ablation models were also developed for the first time in this study. Copyright ฉ 2015 Taylor & Francis Group, LLC.
Keywords
Plastics
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