C.M.O. Valente
Sponsored by Industry Affiliates of the LMA
Abstract‹ 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.
Keywords: acoustic emission, metal cutting, precision machining, micro
machining, microstructure, grain orientation, grain boundary, diamond
turning, depth of cut.
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