A study of laser cutting engineering ceramics |
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Authors: | Hong Lei Li Lijun |
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Affiliation: | Hunan University, Laser Institute, Changsha, Hunan, People's Republic of China |
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Abstract: | A mechanical chopper Q-switched CO2 pulse laser with high peak power, short pulse duration, high pulse repetition rate and moderate average power is developed. Using this laser, a multi-pass cutting process with high cutting speed is proposed for cutting hard and brittle materials such as engineering ceramics. Crack-free and fine cut is obtained in cutting Si3N4 ceramics. Moreover, the formation and elimination of the cracks are qualitatively analyzed in the paper. |
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Keywords: | Laser Cutting Q-switch CO2 |
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