抄録
The drilling of CFRP and titanium stack was carried out and the temperature at the bottom surface of a hole being drilled was measured by using an infrared radiation pyrometer with an optical fiber. The optical fiber is inserted into the oil hole of an internal coolant carbide drill. The temperature measured is considerably higher during the drilling of titanium alloy than that during the drilling of CFRP. A heavy thermal damage is observed at the CFRP-hole edge of Ti/CFRP stack. This is probably because the resin was thermally damaged by the Ti-burr which is heated to high temperature.
