[18p-A404-1~12] Progress in studies on mterial conversion and processing with high-power lasers

[18p-A404-7] Cutting of carbon fiber reinforced plastic (CFRP) by a cylindrically polarized pulsed CO₂ laser

〇Yukinori Adachi¹, Yusuke Hosaka¹, Yuki Iwamoto¹, Masamori Endo¹ (1.Tokai Univ.)

Keywords:carbon fiber reinforce plastic (CFRP), cylindrically-polarized, CO2 laser

We are studying the laser machining of carbon fiber reinforced plastic (CFRP) with the cylindrically-polarized, pulsed CO₂ laser. Last year, we demonstrated a 20% larger drilling rate with the azimuthally polarized laser beam to the other polarization. This time, we conducted laser cutting experiments with the same laser. As a result, the radially polarized laser exhibited a 20% larger cutting rate over two polarization states, namely, azimuthally and randomly polarized laser beams.