Method for optical assessment of finished surfaces obtained by vibration-assisted finishing and effects of finishing conditions on their geometric characteristics

Abstract

Vibration-assisted finishing, which leaves a detailed continuous circular line pattern crossing mutually on the metal surfaces, is a newly developed ornamental abrasive finishing method. However, application of this finishing method and evaluation of the finished surfaces require skill and are dependent on sensory examination. This paper presents a quantitative evaluation of the finished surfaces obtained by vibration-assisted finishing. For this purpose, textural features were extracted from finished surface images by the gray level co-occurrence matrix and 2-D DFT. Moreover, the effects of finishing conditions on their geometric characteristics were investigated.