Application examples

Source: Fraunhofer ILT

Deep drawing

By deep drawing, one of the most meaningful industrial cold deformation processes, a metal plate is brought into the required form with the help of a rigid forming press. Fixed in a blank holder, the plate is pressed with the help of a stamp into a die and then transformed into a car body construction or steel bathtub, for example. To avoid cracks or fractures in the workpiece during this pressing process – which is particularly threatening with high-strength steels - the plate is softened beforehand in the provided bending zones. For this, the relevant zones are heated and thereby changed in their metal structure. With Laserline's LDM and LDF diode lasers, this heating can be realized quite accurately and evenly, and with high process speed.

Source: Fraunhofer ILT

Creating crumple zones

In automobile construction, the targeted creation of crumple zones is one of the most important safety measures. Crumple zones are supposed to deform in case of an accident in such a way that the essential parts absorb the impact energy. To achieve this effect, the car body sheets are softened by heating in predefined zones. Here, with their precise and even heat input, Laserline’s LDM and LDF diode lasers can guarantee optimal results. The metal structure is softened at exactly those points where the crumple effect would be achieved; at all other car body areas, the required and likewise safety-relevant firmness remains. Finally, vehicle occupants can enjoy maximum protection.