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Micromachines 2017, 8(2), 48; doi:10.3390/mi8020048

Laser Fabrication of Miniature Internal Thread in Glass Substrate

Department of Mechanical Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan
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Received: 21 December 2016 / Revised: 1 February 2017 / Accepted: 3 February 2017 / Published: 8 February 2017
(This article belongs to the Special Issue Ultrafast Laser Fabrication for Lab-on-a-Chip)
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Abstract

Miniature internal threads (tapped holes) of S0.5 were fabricated in a glass substrate. Water-assisted laser drilling was applied for fabrication of the threads of S0.5 standard using a subnanosecond laser as a light source. The landscape of the inner surface of the threads was measured by a laser microscope, and showed reasonable agreement with the desired standard. As a proof of concept, a commercial external screw was fitted to the fabricated internal thread. View Full-Text
Keywords: subnanosecond laser; miniature thread; glass; water-assisted laser drilling subnanosecond laser; miniature thread; glass; water-assisted laser drilling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Degawa, H.; Urano, N.; Matsuo, S. Laser Fabrication of Miniature Internal Thread in Glass Substrate. Micromachines 2017, 8, 48.

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