Since the rolling process is a method of applying roller compaction, the surface roughness after machining is affected by the height and shape of the protrusion (ie, the state before processing).
1. Before processing
Since the rolling process is a method of applying roller compaction, the surface roughness after machining is affected by the height and shape of the protrusion (ie, the state before processing).
If the surface condition is rough before processing (the convex part is high and the concave part is deep), the convex part cannot be completely buried and partially recessed to form a rough surface.
In addition, the shape of the convex portion also affects the appearance after processing. The ideal appearance of the irregular shape obtained by cutting the lathe or the sheet of the sheet, and the height that is easy to be rolled, can obtain the most ideal appearance. The better the appearance before the ordinary processing, the better the appearance after processing, and the less wear of the rolling head. If demand is required, an additional process can be added.
2. Pre-machining size
Since the rolling process is a method of applying roller compaction, the diameter of the workpiece will change before and after machining (the inner diameter will expand and the outer diameter will decrease). In order to be able to process to within the dimensional tolerances, the size of the pre-reform process should be considered. Since the amount of change in diameter is related to the material, hardness, and rolling amount of the workpiece, the size is determined by first stopping the test after 2 to 3 trials.
3. Drive machinery
Roller head specification models include the Morse cone mounting section and the parallel mounting section. Rolling processing is different from cutting processing. It does not require high torque. Small-power machine tools can also be used. It can be installed on drilling machines, lathes, turret lathes, boring machines, drills and other equipment without special equipment.
4. Smooth and clean
Since the rolling process is performed by roller compaction, fine dust is generated. Dust not only affects the appearance quality, but also accelerates the loss of the rolling head, so it is necessary to inject a large amount of cutting fluid to eliminate the dust. Use a low viscosity cutting fluid for rolling. The cutting fluid with high viscosity is good in smoothness, but the cleaning performance is poor, and it is not suitable for rolling processing.
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