JATEC汽车用CBN砂轮样本.pdf

????????????????????????CBN????1 Vitrified cBN wheels for automotive camshaft crankshaft grinding 内圆磨头 6 Internal grinding wheels 双端面磨盘 7 Wheels for double-side grinding 槽磨砂轮 8 Slot grinding wheels R ????????????????????????CBN????? ????????????????????????CBN????? Vitrified cBN wheels for automotive camshaft crankshaft grinding 凸轮轴是发动机里的一个部件。它的作用是控制气门的开启和闭合动作，其材质一般是优质合金钢或合金钢。 Camshaft is one of the key parts of auto engine, whose function is to control the opening and closing of valves and usually made of high quality alloy-steel. 曲轴是发动机中最重要的部件。它承受连杆传来的力，并将其转变为转矩通过曲轴输出并驱动发动机上其他附件工 作。曲轴受到旋转质量的离心力、周期变化的气体惯性力和往复惯性力的共同作用，使曲轴承受弯曲扭转载荷的作 用。因此要求曲轴有足够的强度和刚度，轴颈表面需耐磨、工作均匀、平衡性好。 Crankshaft is one of the most important parts of auto engines. Crankshafts take the force transmitted by connecting rods, and transfers it into torque to be output to drive the motions of other engine parts to make it work. Therefore crankshafts have to take complicated forces as combination of centrifugal forces of the journals, inertia forces by air frictions and reciprocating inertia forces, etc. as a result it is required that crankshafts must have high enough toughness and stiffness and surface of the working areas of crankshaft should be of very high quality and wear-resistance to make it work well balanced and smoothly. 凸轮轴和曲轴的质量决定了一台发动机的动力和运转特性，因此凸轮轴和曲轴的设计要求其具有非常高的尺寸精度和 表面质量，从而对磨削提出非常高的要求。JATEC为凸轮轴和曲轴零件的大批量加工提供高效和高性???比的解决方案。 Tremendous high geometry and surface quality requirement is demanded for camshaft and crankshaft grinding operations since work- ing together, camshaft and crankshaft decide the power output and whose motion characteristics of an automotive engine. For these purposes JATEC provides our customers high effici