Application of the tool-material pairing methodology
Machinability of difficult materials - Application to hardened steels

The aim of this study is to determine, as a function of cutting parameters and material hardness, the evolution of cutting force components:

• cutting force: F_c;

• feed force: F_f;

• penetration or thrust force: F_p .

The specific cutting force, also known as cutting pressure, must also be determined. This quantity is defined as the cutting force reduced to the cross-section of the undeformed chip:

The study of this microscopic cutting pressure on the tool tip will enable us to determine the range of validity of the cutting tool used in the chosen material. This approach, known as tool-material pairing, is the subject of standards NF E66-520-1 to NF E66-520-4...