nach oben

Deep rolling - Significantly higher component strength through mechanical processing

What is special about deep rolling

Brief description

During deep rolling, a roller or rolling ball is pressed onto the surface of a component with a defined force and rolls on the surface. High surface pressure between rolling element and surface results in a deformation of the surface and an influence on the microstructure in the component edge zone.

The deep rolling process allows residual compressive stresses to be introduced into the edge zone to a depth of 1-2 mm, which is significantly deeper than with shot peening. These stress changes counteract crack growth in the mechanical load and thus lead to increased dynamic strength.

In addition, the microstructure is strengthened and there is an increase in hardness on the surface, which can minimize abrasive wear on the component, for example. Microhardness measurements show an increase of 10-30%.

What this means for your component:

Deep rolling not only makes the surface up to 95% smoother, but also introduces residual compressive stresses that increase the hardness and thus significantly increase the service life.

Watch the video

Application examples for deep rolling

[Translate to English:] Festwalzen eines Radflansches
Deep rolling of a wheel hub
[Translate to English:] Festwalzen eines Lenkhebels
Deep rolling of a steering lever
[Translate to English:] Festwalzen einer Felge (Radiuskontur)
Deep rolling of a wheel rim (radius contour)
[Translate to English:] Festwalzen einer Felge (Lagerbohrung)
Deep rolling of a wheel rim (bearing bore)
[Translate to English:] Festwalzen einer Dehnschraube
Deep rolling of a tension bolt
[Translate to English:] Festwalzen einer hochfesten Schraube
Deep rolling of a high-strength bolt
[Translate to English:] festwalzen einer Eisenbahnachse
Deep rolling of a railway axle
[Translate to English:] Festwalzen eines API-Kegelgewindes
Deep rolling of an API-thread pin