[9p-PB2-1~12] 3.7 Laser processing

[9p-PB2-4] Influence of Laser Pulse Waveform in Wood Drilling by CO₂ Laser

〇(M2)Hayato Goto¹, Kazuyuki Uno¹, Takahisa Jitsuno² (1.Univ. Yamanashi, 2.ILE, Osaka Univ.)

Keywords:CO2 laser, laser processing, wood drilling

In a wood drilling by a CO₂ laser, carbonization is produced by thermal processing. To control of carbonization, Investigation of a laser pulse waveform in a CO₂ laser is important. Therefore, in this study, the influence of a laser pulse waveform in a wood drilling by a CO₂ laser was investigated. In this study, four types of laser pulse waveforms were used. By a short pulse with a pulse tail with the energy ratio of a spike pulse to a pulse tail of 1:70, maximum cut efficiency was obtained in this study.