Influence of Heat Treatment on Grindability of Carbon Steel : Fundamental Experiment by Single Point Tool

概要

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The grindability of carbon steel, e.g. cutting temperature, cutting forces, machined surface quality and chip formation are studied by a fundamental cutting experiment with a single fly tool method on several kinds of carbon steels, which have been heat treated under various conditions. It was found that the grinding temperature and forces are affected little by the hardness and the metallurgical structure, and that they are rather determined mainly by the grinding speed, and the thermal conductivity and carbon content of the work material. Also an increase of wear land of tool results in an increase in the grinding temperature and forces, which can be attributable to an increase of frictional force associated with the nardness of workpiece. It was further found that the effect of heat treatment and grinding speed is clearly observed on the formation of chip, which can be classified into four groups, thus contributing to the knowlege on grindability of steel.
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