Diamond abrasive layers produced by chemical vapour deposition (CVD) have demonstrated their high potentials as grinding tools. Besides the achieved superb workpiece surface qualities, the low wear rates of the tools show a further important advantage. Wear rate of CVD diamond layers were up to 80 times lower compared to wear rates of standard fine grained diamond grinding wheels demonstrating the outstanding tool life. Additionally, it has been shown that worn CVD diamond layers can be resharpened by additional, short CVD coating processes. The topography after recoating was nearly identical to the initial deposition processes and grinding performance is comparable. This contribution will present the newest results of grinding tests on optical glass (N-BAK2) and alumina as well as the application of recoated tools. The low wear rate of CVD diamond abrasive layers immediately recommends them for the machining of hard and superhard materials.
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