Abstract
On the working surface of grinding wheel, dulling, loading and shedding occur in complicated way with progress of grinding. In this paper, we propose the novel evaluation method to separate those complex changes into the typical changes such as shedding, depositing and welding types of loading, and dulling definitely. Furthermore, in order to examine the validity of the method, the grinding experiments is carried out, and then following results are obtained: The relative frequency distribution derived from the peak height of the working surface profile generates peculiar changes as follows with same sensitivity to the typical changes respectively. The two types of loading decrease the relative frequency of the distribution at inside of the wheel and increase it at periphery. Contrary to this, the shedding and dulling increase the frequency at inside and decrease it at periphery. In addition, the dulling and welding type loading only vary the distribution at narrow region of the wheel periphery. On the other hand, the shedding and deposition type loading vary the frequency almost whole region of the wheel. From above mentioned results, it can be said that the complex changes of the working surface condition can be separated into the typical changes based on the width and central position of changing region and order of increase and decrease within the region in the peak distribution.
