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Laser Hardening Systems

In laser heat treating, energy is transmitted to the materials' surface in order to heat it in a closely controlled way to between 900°C & 1300 °C to create a hardened layer by metallurgical transformation. The laser is used as a heat source, and rapidly raises the surface temperature of a small part of the material. Heat sinking of the surrounding more massive area provides rapid self-quenching, thus producing a hardened transformation layer. No Oil or water is therefore required for quenching.

Laser hardening

This makes Laser hardening cleaner and more readily mobilised than traditional heat treatments.

Any ferrous metal (steel or cast iron) which would normally be hardened by more traditional methods like flame or induction hardening, can be hardened with a Laser. Laser hardening is more versatile than flame hardening ore induction hardening.

Laser hardening provides reliable, repeatable, non-contact and energy-efficient heat in a minimalamount of time. For hardening, laser beam provides the necessary control and accuracy tofocus the heat to a specific area of the part. The laser is suitable for the integration in alreadyexisting manufacturing equipment’s and production lines.

Apart from the traditional hardening process, laser hardening offers a range of applications for tasks which couldn’t be solved hitherto optimally for example for components with special forms and special functional surfaces (survey of the hardening tracks):

  • Selective hardening of single work piece surfaces. Here a selective hard surface arises with a tough center and uninfluenced areas in the direct neighborhood.
  • Hardening tracks at cutting edges, guide tracks, grooves and free mould surfaces withcontinuous crossing geometry
  • Good hardenability of surfaces which are difficult to reach such as craned grooves, flutesand interior surfaces
  • Dot hardening at naps and in blind holes
  • Hardenability of thin, warp-prone parts by a selective, quick heat input at an extremely shortdwell time.

The AL- ROCK is the world’s first mobile robot for targeted laser hardening of metal surfaces.

AL Rock Laser Hardening

The mobile AL-ROCK laser robot is the ideal tool for targeted partial hardening of metallic surfaces; for example, on cutting edges or bend radii
  • mobile laser robot for laser hardening metal

    Mobile Laser Hardening

    The AL-ROCK mobile with 4 kW laser is the ultimate mobile robot for surface metal hardening - targeted partial hardening of metallic surfaces; for example, on cutting edges or bend radii of heavy casting molds. ...

    Mobile Laser Hardening »

If you need more information on any of these laser machines or you would like help integrating them into your production environment, please contact us