Question

Define equation shear angle and chip thickness equation

Answer 1

In any conventional machining process when sample material is ductile, material removal takes place due to shearing under the action of compressive force exerted by the cutting tool. The assumed 2-D plane along which shearing takes place is termed as shear plane; and the inclination of this plane with respect to cutting velocity vector is called shear angle. Moreover, chip thickness after shearing increases as compared to the same for uncut chip before shearing. Accordingly, a positive shear strain exists along the shear plane. This strain is also termed as cutting strain (ε).