Nomex honeycomb structures are attracting increasing interest from many industrial sectors and their use is becoming more widespread. These structures are widely used in sandwich materials as lightweight structures having good mechanical properties. Due to its manufacture the machining of Nomex honeycomb structures present many technical and scientific problems, specifically the low thickness of the walls constituting the honeycomb cells, the composite nature of the paper forming the Nomex and low density of this type of these structures. The objective of this work is to implement a scientifically rigorous approach to predict and analyze the machinability of this type of material. A validation of the model was made through experimental studies with different cutting conditions. Then, a follow-up of the cutting forces and observations of the machined surface quality, using the isotropic elastoplastic approach.