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You have probably seen a steamroller paving a road evening out the rough surface. Superoll roller burnishing performs a similar function. It compacts the surface metal and evens out the roughness obtaining a smooth finished surface. It is a type of plastic deformation and differs from cutting.
It quickly transfers a rough surface into a mirror-like surface of Ry0.1-0.8ƒÊm. In addition, its hardening effect increases wear resistance and fatigue strength by 30%, which is cannot be expected in a cutting process.
Since it can readily finish parts with ultra precision economically, Superoll is now used in a wide variety of applications and achieves great results in many industries such as automobiles, precision machinery components, chemicals and consumer electronics. |
Roller Burnishing is an excellent method for precision finishing of work surface materials. Precision-finished rollers accurately engage and rotate in contact with the work surface creating plastic deformation of the metal. Ultra precision finishing the surface sections worked through boring machines, reamers, and lathes that leave a succession of projections and indentations when microscopically examined. Roller burnishing compresses these "projections" into "indentations" to form a smooth surface.
After a Roller Burnishing operation not only the surface roughness of the part is improved but inherent work hardening forms a finished surface with superior durability.
Fig. 1 How roller burnishing works. |
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