DOES RBT MAINTAIN A CONSTANT DIAMETER DURING ITS WORKING PROCESS ?
The interaction of the helix angle and the inversely tapered rolls and mandrel creates the pressure required for roller burnishing. The pressure is generated because the mandrel tends to overtake the rolls as the tool feeds along with workpiece. This tendency is restricted by a stop on the mandrel which establishes a fixed axial relationship between the rolls and mandrel. Since the rolls / mandrel relationship is constant, the tool maintains a uniform diameter during its complete pass.
