Sub-surface deformation in vibration cutting of copper

Vibration cutting processes yield significantly reduced cutting forces and increased shear angles. However, little research has been dedicated to the impact of vibration diamond cutting on the sub-surface integrity of machined polycrystalline metals. Therefore, the depth of plastic deformation in machined OFHC-copper samples was determined by metallographic methods. Moreover, orientation imaging microscopy (OIM) is introduced as a new SEM-technique, which allows one to visualize the distribution of local crystallographic orientations and plastic deformations. The work-hardening is to be studied by AFM-nanoindenting, which has been applied to different metals in order to prove the reliability of this technique.