High performance cutting of fibre reinforced plastic composite materials

Composite materials are difficult to machine because of the anisotropy and inhomogeneity of their microstructure and the abrasiveness of their reinforcement components. This low machinability can determine surface integrity damage in the machined parts and very rapid wear development in the cutting tool. To date, conventional machining processes, such as turning, drilling or milling, are increasingly required for composite materials parts manufacturing, and can be successfully applied if proper tool design is achieved and adequate machining conditions are selected. This paper presents an outline of the main issues pertaining the machining of fibre reinforced plastic composite materials.