材料科学
飞秒
激光器
光学
激光打孔
振动
蓝宝石
超短脉冲
波长
激光加工
复合材料
表面粗糙度
机械加工
钻探
铜
光电子学
表面光洁度
基质(水族馆)
冶金
声学
激光束
物理
作者
Jung-Kyu Park,Ji-Woon Yoon,Myung-Chang Kang,Sung-Hak Cho
标识
DOI:10.1016/s1003-6326(12)61807-x
摘要
Abstract The ultrafast laser based hybrid machining system was studied and a novel approach was demonstrated to improve laser machining quality on metals by vibrating the optical objective lens with a low frequency (500 Hz) and various displacements (0–16.5 μm) during a femtosecond laser machining process. The laser used in this experiment is an amplified Ti:sapphire femtosecond (10−15 s) laser system that generates 100 femtosecond pulses having an energy of 3.5 mJ/pulse with a 5 kHz repetition rate at a central wavelength of 790 nm. It is found that both the wall surface finish of the machined structures and the aspect ratio obtained using the frequency vibration assisted laser machining are improved compared with those derived via laser machining without vibration assistance.
科研通智能强力驱动
Strongly Powered by AbleSci AI