Research on effect of grinding heat on surface quality of carbon fiber reinforced plastics

The anisotropy, low thermal conductivity and grinding heat of carbon fiber reinforced plastics make machining and surface quality bad. Surface grinding experiments of unidirectional carbon fiber reinforced plastics were carried out using GC60J silicon-carbide abrasive wheel, and the surface temperature of the grinding area was detected online by use of the thermocouple. The rule of surface grinding temperature and the effect of the grinding heat on the surface quality in the condition of different technological parameters were discussed. The experimental results show that the surface grinding temperature increases with the rising of the grinding speed, the grinding depth and the feed speed of workpiece. The grinding heat has a bad influence on the surface quality, such as the fiber pull-out and burning which makes the surface quality worse.