Hardening with a laser means treating only the especially stressed areas of metals, e.g. at steels or cast iron in tool manufacturing.
The beam structure is only heated and changed in the near-surface areas of a workpiece - the so-called surface layers. As the diode laser beam can be directed selectively and flexibly onto the workpiece from just about any directions and the temperature can be controlled precisely on the workpiece, the surface hardening of geometrically, highly complex components becomes possible. From gearwheels and sprocket wheels over cam and worm shafts to gripping and cutting tools in rope drums, almost every surface geometry can be successfully hardened with Laserline’s diode lasers.
The shafts are mainly used in the automotive section. The complex geometry of camshafts and their extreme material stress utilization scenario demand a targeted and selective hardening, where only the beam structure of surface layers is hardened. In subjacent material layers, flexible structures must remain so that the permanently rotating shaft does not become brittle or rigid in a hasty manner.
Source: Matex PM
Production companies rely on job order hardening, for buying their own hardening equipment is not worth it from different reasons. These companies operate in different areas, such that hardening agents have to handle various requirement demands. Laserline's diode lasers are an excellent tool because of the possibility for flexible beam guidance and the precise temperature in which they can treat almost any workpiece successfully. When it comes to buying, they are the cheapest among all available beam sources. Furthermore, they have outstanding efficiency during operation because of their high energy efficiency, long lifetime, and low maintenance costs.
MATEX PM, a company from Pilsen in the Czech Republic, offers job-shop solutions for different metal applications with the diode laser. Together with Laserline, MATEX PM searched for a way to protect a rope drum out of cast iron (with a diameter of two meters and a weight of 2.5 tons) from too high wear when in use.