Abstract
This paper describes the grinding characteristics on high manganese steels (Mn steels) which are austenite type. The grinding tests were performed in order to estimate these grindability by measuring the radial grinding wheel wear or the grinding force and observing the working surface of grinding wheels. The results were compared with those of austenitic stainless steel which has much similarities to high Mn steels in the material properties. The main conclusions are summarized as follows : (1) In grinding of high Mn steels by conventional or CBN grinding wheels, glazing of the cutting edges due to attrition wear is clearly recognized in the former wheel but not in the latter wheels. (2) The grinding wheel wears in the CBN grinding wheels are remarkably smaller than in the conventional wheels. (3) Because of the loading of grinding wheel, grinding wheel wear on austenitic stainless steel is remarkably greater than that on the high Mn steels.
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