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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