Product Code: ICA13_M1002

Experimental Investigation of Cfrp Ablation with Uv and N-Ir Nanosecond Lasers
Authors:
Yuji Sato, Joining and Welding Reserach Institute, Osaka University; Osaka Japan
Masahiro Tsukamoto, Joining and Welding Reserach Institute, Osaka University; Osaka Japan
Kenjiro Takahashi, Joining and Welding Reserach Institute, Osaka University; Osaka Japan
Shin-Ichiro Masuno, Joining and Welding Reserach Institute, Osaka University; Osaka Japan
Kazuki Nakai, Joining and Welding Reserach Institute, Osaka University; Osaka Japan
Tatsuya Nariyama, Kinki University; Osaka
Hitoshi Nakano, Kinki University; Osaka Japan
Presented at ICALEO 2013

A carbon fiber reinforced plastic [CFRP] is widely used for automobile, aircraft and so on, because of high strength, lightweight and weather resistance. The cutting of CFRP is difficult since it was composed of complex matrix of carbon fiber and epoxy resin. The laser processing is suitable way to machining tool for CFRP. Applying the laser cutting of CFRP, the epoxy resin was quickly evaporated before the carbon fiber cut, which caused formation of heat affected zone [HAZ]. Therefore it is required to decrease the HAZ. In this study, nanosecond lasers at UV and IR were employed to cut the CFRP. The ablation dynamics of CFRP was observed by a high speed camera and SEM analysis was conducted to evaluate the HAZ. The results revealed that the HAZ formation depended on the laser wavelength. The HAZ of UV laser became smaller than that of IR laser.