抄録
The final goal of this research is to construct a laser processing system to manufacture stepped shapes by utilizing detected processing sound. In order to achieve this goal, the basic investigations concern analyzing the relationship between laser processing characteristics and processing sound. The main purpose of this report is verify experimentally the possibility of monitoring the processed depth profile by using the value and fluctuation of the sound pressure level of processing sound. The main findings of this research are as follows: (1) The relationship between the depth of groove and sound pressure level can be represented by linear equation when Al2O3+TiC ceramic is used as the work material. (2) There exists a linear relationship between both fluctuations of bottom roughness of processed groove and sound pressure level when the laser energy per pulse is kept constant. (3) The depth profile of processed groove can be monitored by using processed sound.
