Improvement of glass machining performance by ultrasonic vibration grinding

2nd report : Verification of measurement of stress distribution by photo-elasticity

Abstract

The aim of this study is to investigate the ultrasonic vibration assisted grinding phenomenon by visualization of stress distribution. The stress distribution on soda-lime glass, caused by diamond electro-deposited wheel with the diameter of 3mm, is visualized by photo-elasticity method. By assuming that the stress distribution is sufficiently stable for one wheel rotation, the continuously captured images of 153 frames are reconstructed to 3D stress distribution by Computed Tomography. In this report, internal stress distribution of half-space of acrylic resin on which steel spherical indenter contact is captured. The measured stress distribution are compared with theoretical and FEM analytical results to verify the CT method.