Abstract: Carbon fiber reinforced plastic (CFRP) have shown great advantages in aerospace high-end equipment because of their advantages of light quality and high strength. However, CFRP is difficult to be processed. Its mechanical and thermal properties show obvious anisotropy in different fiber directions. It is easy to cause damage during processing. Meanwhile, temperature changes also greatly affect its process ability and aggravate the degree of damage. Therefore, in order to realize the high quality processing of CFRP, it is very important to clarify the effect of temperature on the cutting performance of CFRP. This paper set up the experimental system to control temperature to obtain the change of cutting force and machining damage on different cutting direction. It is found that not only the change of resin matrix caused by temperature will affect the mechanical properties. With the increase of cutting angle, the fiber reinforce phase in the material also becomes more important. This paper provides new data and theoretical support for the optimization of subsequent process parameters and the development of new technology.

Key words: carbon fiber reinforced plastic, temperature controlled cutting, fiber cutting angle, cutting force, sub surface damage