Observation on the process of continuous-wave Nd:YAG laser ablation on carbon fiber composite material - Details

Author：

Huang, Yongguang (Huang, Yongguang.) | Liu, Shibing (Liu, Shibing.) (Scholars：刘世炳) | Long, Lianchun (Long, Lianchun.) (Scholars：龙连春) | Tian, Jiandong (Tian, Jiandong.) | Yang, Zhiguang (Yang, Zhiguang.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

The　phenomena　in　ablation　process　of　Nd:YAG　laser　irradiating　carbon　fibers　reinforced　epoxy　resins　composites　under　different　intensities　were　observed　by　high-speed　camera.　Below　low　intensity　(50　W/cm2),　composite　material　laser　ablation　is　dominated　by　surface　ablation　mechanism　rather　than　burning,　and　the　surface　slight　decomposing　leads　to　form　carbon　powder　or　flocs　which　slowly　disperse　into　the　air　under　long　time　irradiation;　At　middle　intensity　of　300　W/cm2　composite　material　laser　ablation　is　dominated　by　volume　ablation　mechanism,　inner　decomposition　gases　spill　into　the　air　and　ignite　surface　combustion;　At　high　intensity　4500　W/cm2　the　main　mechanism　of　the　mass　ablation　is　surface　ablation,　surface　layer　is　damaged　and　instantaneously　burns　in　a　very　short　time　(0.001　s),　jet　of　plasma　forms　in　the　center　of　laser　spot,　anisotropic　heat　conduction　causes　layered　ablation　and　deforms　the　ablation　zone　appearance.

Keyword：

Ablation Carbon fibers High speed cameras Reinforced plastics Epoxy resins Laser ablation Neodymium lasers Yttrium aluminum garnet Laser materials processing Reinforcement Decomposition Heat conduction

Author Community：

[ 1 ] [Huang, Yongguang]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Liu, Shibing]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Long, Lianchun]College of Mechanical Engineering and Applied Electronic Technique, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Tian, Jiandong]China Academy of Launch Vehicle Technology, Beijing 100076, China
[ 5 ] [Yang, Zhiguang]China Academy of Launch Vehicle Technology, Beijing 100076, China