Manufacture and application performance of precision grinding wheels with CVD coated abrasive layers Online publication date: Wed, 30-Jul-2014
by Ekkard Brinksmeier; Oltmann Riemer; Grigory Antsupov; Kathrin Meiners; Jan Gäbler
International Journal of Abrasive Technology (IJAT), Vol. 5, No. 4, 2012
Abstract: Diamond abrasive layers produced by chemical vapour deposition (CVD) have proven their high potential for their application as grinding wheel abrasive layer. Besides the achievable superb workpiece surface qualities, the low wear rates of the tools show a further important advantage. The wear rates of CVD diamond layers were up to 80 times lower compared to wear rates of standard fine grained diamond grinding wheels. Additionally, it has been shown that worn CVD diamond layers can be resharpened by a short CVD coating processes. The topography of CVD diamond layers after recoating was nearly identical to the initial topography, thus the grinding performance was comparable. This paper introduces the CVD process, the manufacture and the topography of the CVD diamond grinding wheels and discusses the latest results of grinding tests on optical glass (N-BAK2) an PCBN, as well as the recoating procedure of the grinding tools.
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