[9a-W631-1~12] 3.7 Laser processing

[9a-W631-10] Chemical Analysis of Laser Processed CFRP by Raman Spectroscopy

〇Masahiro Moriyama^1,5, Akira Mizutani², Shuntaro Tani³, Ryosuke Nakamura², Atsushi Kosuge³, Isao Ito³, Zhigang Zhao³, Takashi Hira¹, Yohei Kobayashi^3,4, Hiroharu Tamaru^1,4, Norikatsu Mio^2,4, Makoto Kuwata-Gonokami¹, Junji Yumoto^1,4 (1.Grad. School of Sci., Univ. of Tokyo, 2.Grad. School of Eng., Univ. of Tokyo, 3.ISSP, Univ. of Tokyo, 4.UTripl, Univ. of Tokyo, 5.Toray Industries, Inc.)

Keywords:Laser Machining, CFRP, Raman Spectroscopy

CFRP machining using pulsed lasers with wavelengths of 258 nm, 515 nm, and 1030 nm was performed to investigate the wavelength dependence of the removal depth, and Raman spectroscopy of the resin around the laser processed groove was performed, and the chemical change of the resin by laser irradiation was evaluated.