INVESTIGATION OF CUTTING OF Si3N4 ENGINEERING CERAMICS WITH Q-SWITCHED PULSE CO2 LASER

Abstract

Abstract: Cutting of Si3N4 engineering ceramics with Q-switched pulse CO2 laser. Considering the effective shape of the cut front that has influence to the absorption of the laser beam，a mathematics model considering a simplified 2D geometry based on the geometry of a pulsed laser cut during vaporization cutting process is developed. This model is based on the energy balance. The experiment results show that it would realize crack-free cutting by using high speed and multi-pass cutting.

Key words: Cutting, Mathematics model, Q-switched pulse CO2 laser, Si3N4

CLC Number:

TG442

Hong Lei;Li Lijun;Ju Chunlei. INVESTIGATION OF CUTTING OF Si3N4 ENGINEERING CERAMICS WITH Q-SWITCHED PULSE CO2 LASER[J]. , 2002, 38(6): 61-65.

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INVESTIGATION OF CUTTING OF Si3N4 ENGINEERING CERAMICS WITH Q-SWITCHED PULSE CO2 LASER

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