- Development of Vibration Assisted Hybrid Femtosecond Laser Ultra-precision Machining System and Cu-Zn alloy Application
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Won-Suk Choi, Ji-Wook Yoon, Sung-Hak Cho, Myung-Chang Kang
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J Korean Powder Metall Inst. 2013;20(4):308-312.
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DOI: https://doi.org/10.4150/KPMI.2013.20.4.308
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 Abstract
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- In this paper, we describe experiment results using a vibration assisted hybrid femtosecond laser (lambda:795 nm) ultra-precision machining system. The hybrid system we have developed is possible that optical focal point of the femtosecond laser constantly and frequently within the range of PZT(piezoactuator) vibrator working distance. Using the hybrid system, We have experimented on brass and studied about differences of result of hole aspect ratio compare to general experiment setup of femtosecond laser system. Aspect ratio of a micro hole on brass is increased as 54% with 100 Hz vibration frequency and surface roughness of the side wall also improved compare to non-vibration.
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