Remote Laser Hardening – RLH – A

RLH-A | Flexible hardening optics for today's challenges

The RLH-A offers real advantages when it comes to remote laser hardening of intricate component structures. It enables process-reliable hardening depths in the 0.1-millimeter range along with a variable design of the spot geometry. Individual material surfaces can be hardened selectively with contour accuracy – all with a single processing optic. In the past, different optics with corresponding spot shapes were required for different components. Now, the RLH-A handles every hardening task.

Function description

The RLH-A uses a highly dynamic 1-D scanning unit to create variable track widths. During the scanning motion, the temperature is recorded coaxially to the laser beam at the laser target location. The process temperature is then regulated according to the location by varying the laser power and scanning speed. The patented control circuit has a two-stage design to ensure maximum regulating speeds. This prevents melting of thin-walled components or edges. Thicker workpieces with higher heat capacity can also be sufficiently hardened.

Areas of application

A. Suitable for a wide variety of hardening tasks on intricate and complex component structures, the RLH-A is ideal for a full range of powertrain and automation applications.

B. Geometries with different component thickness, variably shaped edges and steps.

C. Softening and de-consolidation are also possible.

Advantages of RLH - A

-> Hardening with a single processing head – for various contours on a single component
-> Selective hardening of components with multi-dimensional curved surfaces, holes or notches; components that are prone to distortion
-> Edge layer hardening in the 0.1-millimeter range, the core remains ductile
-> Precise adjustment of process parameters – also during the process
-> Short setup times
-> Precise local and targeted energy input

Properties of RLH - A

1. Variably adjustable process parameters: track width left/right, pre-heat temperature, hardening temperature, power, de-focus and emissions coefficient, energy input with variable focus shape
2. Reliable hardening and quality with highly-dynamic temperature control
3. Modular construction with the Scansonic scapacs® system – practically limitless adjustment of optical characteristics, fiber couplings, fieldbus interfaces, etc.
4. Parameterization with special software (GUI)

Supported Laser

– Diode lasers
– Solid state lasers
– Fiber lasers