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http://dx.doi.org/10.7736/KSPE.2013.30.12.1265

Modeling and Analysis of Thermal Effects of Underwater Laser Drilling for Ceramics  

Kim, Teak Gu (Graduate School of NID Fusion Technology, Seoul National Univ. of Science and Technology)
Kim, Joohan (Department of Mechanical and Automotive Engineering, Seoul National Univ. of Science and Technology)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.12, 2013 , pp. 1265-1271 More about this Journal
Abstract
In this work, modeling and analysis of thermal effects laser drilling under water for ceramics were presented. Laser is a unique tool for machining ceramics due to the characteristic of non-contact material removal. However, ablation by a laser often induces a thermal effect on the material and an increased heat-affected-zone or deposition of debris can be observed on the machined parts. The underwater surrounding improved a heat transfer rate to cooling down the machined part and could prevent any deposition of debris near the machined surfaces and edges. The heat modeling was applied to obtain the temperature distributions as well as temperature gradients between the material and surroundings. The cooling effect of the underwater laser drilling was improved and a more stable temperature distribution was calculated. The actual laser drilling results of ceramic laser drilling were presented to verify the effects of underwater laser drilling.
Keywords
Laser drilling; Ceramic; Water Surrounding;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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