Development of an overflow-assisted underwater laser ablation
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Publication Details
Author list: Duangwas S., Tangwarodomnukun V., Dumkum C.
Publisher: Taylor and Francis Group
Publication year: 2014
Journal: Materials and Manufacturing Processes (1042-6914)
Volume number: 29
Issue number: 10
Start page: 1226
End page: 1231
Number of pages: 6
ISSN: 1042-6914
eISSN: 1532-2475
Languages: English-Great Britain (EN-GB)
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Abstract
Liquid-assisted laser machining processes are of significance in the thermal damage reduction of cut material. However, the processes suffer the poor cut quality due to the disturbance of water to the laser beam. This article firstly proposes a new technique to remedy problems found in the general underwater laser ablation method. An overflow system was incorporated in the laser machining process for introducing a uniform water layer with a steady flow on the work piece surface. By implementing this new technique, a better cut surface quality than that obtained from dry and typical underwater laser approaches can be accomplished. It is apparent that this technique could make the normal pulse infrared lasers feasible for processing materials with low thermal damage. ฉ Taylor & Francis Group, LLC.
Keywords
Ablation, Damage, Defects, Laser, Micromachining, Overflow, Underwater
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