Analysis of Tool and Workpiece Interaction in Diamond Turning Using Graphical Analysis of Acoustic Emission

The surface quality obtained in diamond turning operations is highly influenced by the interaction between the tool and workpiece. These influences include changes in cutting forces, chip formation phenomena, microstructure of workpiece and others. Local changes in the depth of cut and material properties lead to variable cutting forces that may result in unacceptable form errors. This research proposes an innovative approach for mapping the AE RMS generated during diamond turning able to graphically represent several features of the interaction between tool and workpiece related to instant depth of cut distribution, grain boundaries and grain orientation.