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研磨圆柱滚子外径的目的,是为了改善滚动表面的粗糙度,以及降低轴承的噪音.研磨是一种出现较早的光整加工方法,它既能用于平面加工,又能用于外径或内孔的曲面加工.研磨后研的工件表面尺寸精度和几何形状精度可达到0.1～0.3μm,糙度可达到Ra0.01μm.而且工件表面质量均匀,尺寸稳定.研磨时,研具在一定的压力下与被加工面作复杂的相对运动,而磨粒则在两者之间发生滑动和滚动,从而产生切削和挤压作用;与此同时,研磨液中的液体与工件表面发生化学反应,使工件表面产生一层氧化膜,并很容易地被磨粒刮去.就这样,研磨既起着机械切削作用,又起着物理化学作用.
The purpose of grinding the outer diameter of the cylindrical roller is to improve the roughness of the rolling surface and to reduce the noise of the bearing Grinding is an earlier method of finishing that can be used for both planar and outer Diameter or inner surface of the workpiece after grinding grinding the surface of the workpiece size accuracy and geometric shape accuracy of 0.1 ~ 0.3μm, the roughness can reach Ra0.01μm. And the workpiece surface quality and dimensional stability. Grinding, Under certain pressure and the surface to be processed for complex relative movement, while the abrasive occurs between the two sliding and rolling, resulting in cutting and extrusion; at the same time, the liquid in the slurry and the workpiece surface chemistry Reaction, the surface of the workpiece to produce a layer of oxide film, and is easily scraped off by the abrasive.In this way, grinding both play a mechanical cutting role, but also plays a physicochemical role.