我厂今年订购的全数控无靠核凸轮轴磨床，采用砂轮线速80m／s的高速磨削，砂轮采用陶瓷结合剂立方氯化棚（CBN），这种砂轮价格为现用单晶刚玉砂轮的37倍，但寿命为其21倍，而且生产效率提高34％，全年可节省换砂轮时间二百多小时，放经济上仍属合理，现将有关情况介绍如下。一 This year, our factory orders all CNC non-core camshaft grinding machines, using high-speed grinding wheel speed 80m / s, the wheel adopts ceramic binder cubic chloride shed (CBN), the price of this wheel is the current single-crystal corundum grinding wheel Of the 37 times, but its life expectancy of 21 times, and production efficiency increased by 34%, the whole year can save more than two hundred and exchange hours wheel, put the economy is still reasonable, the relevant circumstances are as follows. one