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High Purity Polycrystalline CBN steel grit

Mechanical Properties and Grinding Characteristics of High Purity Polycrystalline CBN steel grit
Some mechanical properties and grinding characteristics of newly developed high purity polycrystalline cBN grits have been investigated. This new cBN grit possesses an

ultrafine crystal structure composed of sub-micron sized primary crystal grains. It also has a fracture strength 1.5 times higher than the conventional polycrystalline

cBN grit. When grinding high-speed tool steel, the grinding ratio in using the new type cBN grits is 6 times higher than that in using the conventional polycrystalline

cBN grits.

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