Investigation of Profile Cutting on Glass Plates Using a Pulsed UV Laser System
Shih-Feng Tseng*,**, Wen-Tse Hsiao*, Kuo-Cheng Huang*,
Chien-Yao Huang*,**, and Chang-Pin Chou**
*Instrument Technology Research Center, National Applied Research Laboratories, 20 R&D Road VI, Hsinchu Science Park, Hsinchu 30076, Taiwan
**Department of Mechanical Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
A solid-state ultraviolet laser with a circular processing path was used for profile cutting on soda-lime glass plates. Simulation results show that decreasing scanning speed and path spacing and increasing circular processing path frequency yields a smooth cutting edge for the same processing length. Profile glass-plate cutting shows the machined surface with more obvious roughness and numerous microcracks near areas of laser focus than in areas of laser defocusing. This phenomenon is attributed to high laser-energy density and strongly affecting surface roughness.
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