Bearing ring superfinishing process analysis

Bearing ring superfinishing process analysis ( 1) Cutting stage bearing stone surface contact with the rough on the surface of the raceway convex peak, due to the contact area is lesser, { TodayHot} Per unit area of the pressure, to a certain pressure, the stone first 'cutting' effect by artifacts, make the part on the surface of the stone grinding grain loss and fragmentation, showing some new sharp grinding grain and the edge. Meanwhile, convex peak on the surface of the workpiece is fast cutting, by cutting with the cutting action to remove the workpiece and grinding metamorphic layer on the surface of the convex peak. This phase is called cutting stage, at this stage to remove most of the metal allowance. （ 2) Half cutting stage to continue with the processing, is gradually smooth surface. At this point, the millstone { HotTag} Contact with the surface area is increased, the pressure on unit area is reduced, cutting depth, cutting ability. At the same time, the stone surface pores blocked, millstone is cutting state. Cutting phase, this phase is called half in half cutting phase surface cutting trace becomes shallow, and a dark gloss. （ 3) Finishing stage this is the last stage of the superfinishing. Gradually along with the workpiece surface is smooth, the millstone and further increase the contact area on the surface of the workpiece, and the stone is gradually lubricating oil film between the surface and isolation, the pressure on unit area is very small, is enough to reduce millstone self-sharpening, cutting effect decreases, and finally tends to stop cutting automatically. This phase is called the finishing stage. Finishing stage work surface no cutting marks, a comprehensive gloss.