Optimized application of various surface treatment processes

The Fraunhofer IWS transferred numerous developed processes and system technology components to industrial laser hardening machine installations. Examples for such installations are:

Laser beam hardening of a steam turbine blade
© Fraunhofer IWS
Laser beam hardening of a steam turbine blade
Hardening of a gripper cam with high power diode laser
© Fraunhofer IWS
Hardening of a gripper cam with high power diode laser
  • laser beam hardening of inside surfaces in injection modules of modern automotive diesel motors (3 machine installations, about 9 Mio parts annually),
  • temper zone free laser beam hardening of sleeve bearing surfaces of automotive turbo chargers (universal hardening machine, 3 installations for approximately 90 different part types),
  • robot based laser beam hardening in tool and die making operations (5 system installations in Germany, Switzerland, Italy and Slovenia),
  • laser beam hardening of very large forming tools (hardening portal, integration in a 5-axis-milling portal, two systems),
  • universal hardening systems (based on a standard milling center, four systems) for job shops, high volume production and development,
  • laser beam hardening of hydraulic components (3 systems, of which two are integrated into automated horizontal rod turning lathe).

The development of novel processes for the treatment of precipitation hardenable materials represents a particularly special scientific achievement. Precipitation hardened turbine blades made from 16-4 PH steel show a substantial increase in lifespan and are today used in more than 30 turbines in large power plants.


Laser beam hardening in tool making

Local laser beam hardening of cutting dies and moulds for car body-in-white parts has become a widespread technology. The Fraunhofer IWS systems allow optimum and reliable processes due to the process control and the generation of optimized laser spot shapes and intensity profiles. These systems are applied, for instance, in a robot based laser hardening and cladding machine within the tool shop.


Integration of laser beam hardening in machine tools

A very promising possibility to shorten production process chains is the integration of the laser hardening technology in the plant and production lines of conventional mechanical production processes.


Integrated hardening

Das Forschungsprojekt "Integrierte Härterei" hatte zum Ziel, das notwendige partielle Härten von Großwerkzeugen in die Systeme zur mechanischen Bearbeitung zu integrieren.


Laserintegration in manufacturing technology - LiFt initiative

The goal of the initiative was and still is to support Saxony’s competitiveness and potential in the field of machine manufacturing and plant construction through laser technology.