Fractal Analysis of Self-Sharpening Phenomenon in cBN Grinding |
| Journal |
Key Engineering Materials (Volumes 389 - 390) |
| Volume |
Advances in Abrasive Technology XI |
| Edited by |
Tsunemoto Kuriyagawa, Libo Zhou, Jiwang Yan and Nobuhito Yoshihara |
| Pages |
42-47 |
| DOI |
10.4028/www.scientific.net/KEM.389-390.42 |
| Online since |
September, 2008 |
| Authors |
Yoshio Ichida, Ryunosuke Sato, Masakazu Fujimoto, Nabil Ben Fredj |
| Keywords |
Attritious Wear, CBN Grinding Wheel, Fractal Dimension, Grain Cutting Edge, Microfracture, Self-Sharpening |
| Abstract |
This paper presents a fractal analysis of the self-sharpening phenomenon of the grain
cutting edges in cBN grinding. To clarify the self-sharpening mechanism due to the micro fracture
of the cutting edges, the changes in three-dimensional profile of the cutting edges in the grinding
process have been measured using a scanning electron microscope with four electron probes and
evaluated on the basis of the fractal analysis. The fractal dimension for surface profile of the cutting
edge formed by the micro fracture is higher than that of the cutting edge formed by the ductile
attritious wear. Therefore, the complicated changes in shape of the cutting edge due to the
self-sharpening can be evaluated quantitatively using the fractal dimension. |
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