Abstract
The article deals with the influence of time of the drag finishing process on the size of the cutting edge radius for cutting tools. In the experiments, four-tooth cemented carbide mills with diameter of 10 mm were used that were ground on Reinecker WZS60 tool grinding machine from Ceratizit CTS20D. Tools were drag finished on OTEC DF3Tools with the use of SIX 70/16 granulate and grinding oil. The time of the drag finishing process was varied from 1 to 10 min. After drag finishing, the tools were measured on the Zeiss Surfcom 5000 shape and countour measuring machine. The aim of the paper was to determine the influence of time as a parameter on the achieved cutting edge radius size rn. Cutting edge radius size on both the face teeth and helical teeth was measured. The dependence of cutting edge radius from process time when drag finishing in the mentioned granulate was determined and described in the article.
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