This method is generally used in the operation of narrow and difficult-to-access surfaces having radius R< 4 mm. Rolling force, through using profile deep rolling rollers, is implemented to radius, an area which will be exposed to metal fatigue. Adjustable deep rolling rollers, is automatically aligned with the slope of the work piece. This considerably reliable operation calculates production tolerances and completely distributes remnant compression stress as it is demanded.

The Operation is realized through two motions:

1st Motion; Rotation: Workpiece turns.

2nd Motion; Immersion: Deep rolling roller which is purpose-built according to radius profile is pressed onto radius with pre-determined force.