SG砥石のドレッシング機構に関する研究

概要

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The dressing mechanism of the SG wheel, the grains of which are sintered grains of 0.2μm~0.3μm WA particles, was studied from the observation of grains which had fractured or been worn out away from the wheel into the coolant, compared with those of the WA wheel. The main object of this study is to estimate the size distribution of the grains gathered from the coolant in order to investigate the fracture mechanism of the wheel caused by dressing. At the same time, the quasistatic compression tests of the grains were pursued to clarify the strength of the grains which is the important factor in the dressing operation. The multisensing technique, which, in this study, involves force measurement, image processing and AE measurement, was applied and the obtained information were reproduced on a personal computer. As a result, it was clarified that the fracture characteristics of the grain play the most important role in dressing and that the multisensing technique is very useful for the study of the dressing mechanism.
1996-05-25