Superfinishing features bearing rings
Superfinishing is under the good lubricating condition, the workpiece rotate at a constant speed, while using fine-grained Whetstone certain pressure pressed against the workpiece surface, and as a method of processing a reciprocating oscillatory motion in a direction perpendicular to the workpiece rotation method. It has the following features:
1. Can effectively reduce the waviness. Superfinishing process, contact with the workpiece when the stone arc is greater than or equal to the wavelength of the surface waviness, we can guarantee Whetstone always acting without touching the crest and trough, peak contact pressure so large hump on It is removed, thus reducing the waviness.
2. Improve the gutter-ball bearing raceway error. Superfinishing can effectively improve the groove-shaped raceway error, and can be improved about 35%.
3. make is Superfinishing surface compressive stress. Superfinishing process mainly produces cold plastic deformation, and thus after Superfinishing workpiece surface residual compressive stress.
4. reduce the surface roughness.
5. The ferrule can increase the contact area of ??the work surface. After Superfinishing ferrule working surface area contact support by 15% to 40% after grinding, increased 80% to 95%. 6. High production efficiency, low labor intensity, easy to automate.
