Laser scanned patterns of machined surfaces

Abstract In this contribution, machined surfaces are analyzed corresponding to the dynamic aspects of cutting operation. Productivity is limited due to harmful vibrations that deteriorate the quality of the machined surface. The related surface pattern carries the history of the resultant relative vibrations, thus the dynamical properties of the machining system could be extracted. To describe the surface of a machined workpiece, a laser displacement sensor is applied for scanning purposes. The measurement procedure of the surface scanning is described, its applicability and limitations are also discussed. In turning processes, the static displacement error and the arising chatter frequency are analyzed along a shaft by means of the measured diameter offset and gradient of the chatter marks, respectively.