Technology

Laser hardening is a process in which the energy input takes place by means of radiation directly onto the component surface. The laser beam heats a short time, limited locally, the upper portion of the material up to the austenitizing temperature of the material used. This leads to a homogenization of the carbon distribution and thus the spread of Austenitisierungsfront in the material.

Depending on the material used, the austenitizing temperature is about 900 ° C to 1400 ° C and the holding time is about 3 s to 10 s.

Laser cladding by powder (deposit welding) is a manufacturing process in which a powdered filler material is melted by means of a laser and applied to a workpiece.

The powder is usually supplied by means of multi-jet nozzles, wide jet or coaxial nozzles. The energy input generated by the laser heats the component surface and creates a molten bath. The continuous powder or powder mixture fed in via the powder nozzle is heated in the laser beam and then melted in the molten bath.

With the laser wire processing optics COAXwire of the Fraunhofer IWS a compact solution for the processing of metallic wire materials by means of laser systems is available.
A special three-beam optics system with centric wire feed enables direction-independent process control in a variety of machining positions.
User benefits result in 100% effective material utilization, high productivity and clean process conditions.