Welding of Thin Glass Plates with a CO<SUB>2</SUB> Laser Beam

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  • TANIYAMA Tetsuya
    Department of Electrical Engineering, College of Science and Technology, Nihon University.
  • OZAKI Tomoyuki
    Department of Electrical Engineering, Graduate School of Science and Technology, Nihon University
  • KOMURO Toshiya
    Department of Electrical Engineering, Graduate School of Science and Technology, Nihon University

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Other Title
  • CO<SUB>2</SUB>レーザー光によるガラス薄板の溶接
  • CO2レーザー光によるガラス薄板の溶接
  • CO2 レーザーコウ ニ ヨル ガラス ウスイタ ノ ヨウセツ

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Abstract

This paper describes a method of welding two plates of glass together using a CO2 laser with a laser power of 15.2 W and a wavelength of 10.6×10-6m. The experiment is conducted using plates of borosilicate glass and borosilicate kron glass (BK7). The thicknesses of glass plates are 1.0×10-3m. The glass plates are preheated at above 400°C in an electric furnace and then exposed to a laser beam of a power density of 7.34×106 W/m2 with a welding speed of 0.6 ×10-3 m/s. The welding is successful for a number of trials without failure. The welding of cover glasses with a thickness of 0.12×10-3m is also successfully carried out.

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