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Study on the cutting properties of the singer layer metal bonded cBN grinding wheel by electroplating in grinding of heat-treated steel SKD11

This article presents preliminary investigations on the cutting ability of the singer layer metal-bonded cBN grinding wheel manufactured by electroplating method at Vietnamese laboratory. The cutting ability of the grinding wheel is evaluated by two factors: grinding ratio G and surface roughness of workpiece. These results are compared to those of the Japanese grinding wheels. The experimental results showed that the fabricated cBN grinding wheel has good cutting ability with high grinding ratio G. The value of the grinding ratio was 600 to 1800 in the grinding process of SKD11 steel (hardness of 62-63HRC) at the grinding speed V of 12.56m/s, feed rate S of 300mm/min, depth of cut t of 0.01mm. The maximum grinding ratio (1800) is equivalent to the average grinding ratio of the Japanese grinding wheel.

Từ khóa: singer layer metal bonded cBN grinding wheel, electroplating method, cutting ability, grinding ratio, surface finish, cBN abrasive

8 p ovanketv 07/06/2019 398 2

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