On the Geometrical Shape of Scratched Groove in Friction Process

概要

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The shape and the size of a scratched groove formed on metal surface by a single point slider, such as a cone and a sphere, have been measured in order to obtain an information for evaluating the friction force in scratching process. A special viewpoint of this study is to know the magnitude of the height of a raised ridge formed around the slider. The heights of front and side ridges were examined precisely on the scratched groove, and the effects of the cone angle and the radius of sphere on the ridge heights were well discussed. It was found that the change in shape of the slider due to metallic transfer would have an effect on the change of the ridge height. Furthermore, it became clear that the friction force increased with increasing the height of front ridge and the groove depth.
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