QスイッチYAGレーザ加工の加工音

概要

論文の詳細を見る
Audible sound is generated in laser beam drilling. In the present paper, experiments on relationship between drilling characteristics and generated sound pressure were carried out for various materials by Q-switched YAG laser. The sound pressure was measured by a microphone with a sensing range of 50 Hz to 13 kHz and a piezoelectric transducer with that of 100 kHz to 1 MHz. The sound pressure of high frequency obtained by the piezoelectric transducer has the same tendency in relationships between sound pressure and drilling characteristics as those obtained by the microphone. Furthermore, higher sound pressure is generated when a deeper hole is drilled ; this is useful for focus positioning in actual operation of laser beam drilling. The sound generated in various materials is also obtained ; higher sound pressure is generated in a target material where a hole of larger volume is drilled.
公益社団法人精密工学会の論文
1989-03-05