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Evaluation of molten zone in glass welding using ultra-short pulsed laser

Mohid, Zazuli and Okamoto, Yasuhiro and Yamamoto, Keishi and Uno, Yoshiyuki and Miyamoto, Isamu and Cvecek, Kristian Evaluation of molten zone in glass welding using ultra-short pulsed laser. In: 5th International Conference on Leading Edge Manufacturing in 21st Century (LEM21), 2-4 December 2009, Osaka University Convention Centre, Japan.


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Fusion welding is well known as the most promising technique in glass joining, since joining can be accomplished without any intermediate layer and mechanical contact. High precision, small heat-affected zone (HAZ) and small shock-affected zone (SAZ) by ultra-short pulsed laser make it possible to perform the process with minimal damages to the surrounding area. However, there still remained a lot of things to be clarified in this process, since glass materials are very sensitive to temperature gradients and available in different thermal properties. In this study, molten zones created by ultra-short pulsed laser in borosilicate glass and fused silica glass were evaluated. Laser irradiation was carried out inside the glass under various processing conditions. Molten zone was observed visually, and its mechanical strength was measured using three points bending test.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: glass welding; ultra-short pulse laser; borosilicate glass; fused silica glass; molten zone; bubbles
Subjects: T Technology > TP Chemical technology > TP785-869 Clay industries. Ceramics. Glass
Depositing User: Khairunnisa Ahmad
Date Deposited: 05 Oct 2011 03:40
Last Modified: 05 Oct 2011 03:40
URI: http://eprints.uthm.edu.my/id/eprint/1994
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