TITLE:
Optimization of Parameters CO2 Laser for Drilling Different Types of Glass
AUTHORS:
Nafissa Khennafi-Benghalem, Walid Allag
KEYWORDS:
Glass, CO2 Laser, Optical Machining, Laser Drilling
JOURNAL NAME:
New Journal of Glass and Ceramics,
Vol.5 No.4,
September
28,
2015
ABSTRACT: The aim of this work is to study in detail the drilling process on glass by CO2 laser. The study parameters
considered in the present experiments are based on the laser beam power of range
(30% - 80% of 25 W) and an exposure time for drilling (2 - 8 s). The measured diameters of holes
by optical methods are between [300 - 800 μm]. The results obtained by optical observations suggest
that ordinary and mineral glasses cannot withstand to a contact of the laser beam and crack
during the formation of the drilling hole. The minimum power and duration of exposure are the
optimal parameters for drilling the organic glass, we observe no micro-cracks, and again we see
that the edges of the holes have a good surface quality with a high aspect ratio.