Detection of Wheel and Workpiece Contact/Release in Reciprocating Surface Grinding

Abstract

This paper evaluates the performance and limitations of a simple algorithm to detect contact and release events in reciprocating surface grinding by processing the output of a piezoelectric force transducer. It efficiently detects these events independent of workpiece material, wheel type, or grinding conditions (except for dry grinding with low material removal rates). The purpose of this algorithm is to prevent force overshoot at the beginning of engagement in the study of subsurface plastic deformation.