先进工具材料(其中包括硬质合金)的合理应用是生产部门各工厂提高机械加工效率的最重要的方向之一。《原子机器》工厂在车床和立式车床上粗加工大型低、中合金钢毛坯时,采用了MC2210和MC1460涂层多边形大型可转位硬质合金刀片,在耐用度相同的条件下其切削用量比T5K10焊接乃片高40～50%,例如,在采用03114—250724(ГОСТ19052—80)型刀片时能得到如下的切削用量:深度达18毫米,S=1.5～1.8毫米/转,U=60～65米 The rational application of advanced tool materials, including cemented carbide, is one of the most important directions for improving the efficiency of machining in the various factories in the production department. The Atomic Machine plant used large, indexable cemented carbide inserts with MC2210 and MC1460 coated polygons for roughing of large low- and medium-alloy blanks on lathes and vertical lathes, cutting at the same durability For example, in the case of the 03114-250724 (ГОСТ 19052-80) inserts, the following cutting rates are obtained: Depth up to 18 mm, S = 1.5 to 1.8 mm / rev, U = 60 ~ 65 meters