INFLUENCE OF GRINDING FEED SPEED ON 3D TEXTURE PARAMETERS
Abstract
This paper presents a study that underlines the use of 3D profilometry for evaluating the grinding process of a hardened carbon steel. Based on optical profilometry, there were selected squared areas on the grinded samples and the influence of the feed speed was established in terms of average values of a set of 3D texture parameters.
One of the main conclusions of this study is that Sa (the 3D average roughness) and even Sq (the root mean square) are not enough to characterize a grinded surface. Based on the obtained data, the authors recommend analyzing the surface quality by a set of 3D parameters, including amplitude and functional ones, especially for tribological applications. Acceptable values for both Sa and Sy (the maximum height on investigated area) were obtained for the fees speeds of 5 m/min and 15 m/min, with a larger scattering range for the lower feed speed. For this study, the feed speed of 15 m/min seems to be more adequate in terms of efficiency, especially as concerning the dependence processing time – surface quality.
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