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Electrolytic in‐process dressing grinding performance of a multi‐layer brazed coarse‐grained diamond wheel using an electrolyte containing carbon microspheres
Author(s) -
Wu Qiaoping,
Song Kun,
Ouyang Zhiyong,
Wang Yu
Publication year - 2020
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13571
Subject(s) - materials science , electrolyte , brazing , grinding wheel , polishing , diamond , layer (electronics) , ceramic , composite material , oxide , grinding , carbon fibers , metallurgy , electrode , composite number , chemistry , alloy
An electrolyte containing carbon microspheres (CMSs) was prepared for electrolytic dressing of a multi‐layer brazed coarse‐grained diamond wheel. And the influence of CMSs on the electrolytic in‐process dressing grinding performance of Si 3 N 4 ceramics with the brazed wheel was investigated. The results indicate that the CMSs can increase the electrolytic capacity of the electrolyte, which increases the thickness of the oxide film formed on the brazed wheel surface, and the worn diamond grit can easily fall off from the bonding matrix. In addition, the CMSs were adsorbed and distributed on the film, which effectively improves its densification and adhesion strength. This thicker and denser oxide film can improve the polishing effect of the brazed wheel. Thus, a better machined surface quality and less subsurface damage of the Si 3 N 4 ceramics can be obtained by the multi‐layer brazed coarse‐grained diamond wheel with electrolyte containing CMSs.