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 machine d polycrystalline metals. Therefore, the depth of plastic deformation in ma chined OFHC-copper samples was determined by metallographic methods. Moreov er, orientation imaging microscopy (OIM) is introduced as a new SEM-techniq ue, which allows one to visualize the distribution of local crystallographi c orientations and plastic deformations. The work-hardening is to be studie d by AFM-nanoindenting, which has been applied to different metals in order to prove the reliability of this technique. (C) 2001 Elsevier Science Inc. All rights reserved.