Ultrafast Feed Drilling of Carbon Fiber-Reinforced Thermoplastics

Yasuhiro Kakinuma, Takuki Ishida, Ryo Koike, Heiner Klemme, Berend Denkena, Tojiro Aoyama
2015 Procedia CIRP  
Carbon fiber-reinforced thermoplastics (CFRTP) are just beginning to be utilized for various applications such as aerospace, automobiles, and sporting goods in place of CFRPs, and the demand for through-hole drilling of CFRTPs is increasing. In this study, the machinability in drilling of CFRTPs under various conditions was experimentally analyzed in terms of the material properties, and a feasibility study of ultrafast feed drilling was conducted. The results showed that delamination at the
more » ... let surface can be significantly suppressed during high rotational drilling when the feed rate is set to more than 3000 mm/min. By providing appropriate drilling conditions to prevent polymers in CFRTPs from softening, ultra-fast drilling of CFRTPs was successfully achieved under dry conditions.
doi:10.1016/j.procir.2015.08.074 fatcat:jhykdjewxbdirdvmrweglzq3ru