山德维克日本分公司宣称,瑞典山德维克公司研制成功一种“可乐满CB 50”立方氮化硼刀片,可高速切削超难加工材料,CB 50是以CBN 为基本材料制成的刀具新品种.过去一直是采用磨削方式加工的淬火高合金钢、耐热合金等难加工材料,均可用CB 50对其进行高速切削,经济效果很好。CB 50,是在高韧性硬质合金基体上,采用高温高压烧结一层厚约0.9毫米的CBN。CBN 的硬度稍次于金刚石,作 Sandvik Japan announced that Sandvik Sweden has successfully developed a “Coromant CB 50” cubic boron nitride blade for high-speed cutting of super-hard materials CB 50 is made of CBN The new varieties of tools, which used to be ground with hardened high-alloyed steels and heat-resistant alloys that have been ground in the past, can be cut at high speeds with the CB 50 and have good economic results. CB 50, is a high toughness cemented carbide substrate, the use of high temperature and pressure sintering a layer of about 0.9 mm thick CBN. The hardness of CBN is slightly lower than that of diamond