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6 March 2014 Analysis of laser ablation dynamics of CFRP in order to reduce heat affected zone
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A carbon fiber reinforced plastic [CFRP], which has high strength, light weight and weather resistance, is attractive material applied for automobile, aircraft and so on. The laser processing of CFRP is one of suitable way to machining tool. However, thermal affected zone was formed at the exposure part, since the heat conduction property of the matrix is different from that of carbon fiber. In this paper, we demonstrated that the CFRP plates were cut with UV nanosecond laser to reduce the heat affected zone. The ablation plume and ablation mass were investigated by laser microscope and ultra-high speed camera. Furthermore, the ablation model was constructed by energy balance, and it was confirmed that the ablation rate was 0.028 μg/ pulse in good agreement with the calculation value of 0.03 μg/ pulse.
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Yuji Sato, Masahiro Tsukamoto, Tatsuya Nariyama, Kazuki Nakai, Fumihiro Matsuoka, Kenjiro Takahashi, Shinichiro Masuno, Tomomasa Ohkubo, and Hitoshi Nakano "Analysis of laser ablation dynamics of CFRP in order to reduce heat affected zone", Proc. SPIE 8967, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XIX, 89670M (6 March 2014);

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