Heat more quickly into the plastic range thanks to the depth effect, then bend without cracks with little force.

This was the topic of ‘induction straightening’ when we met Christian Bothur, editor of ‘Praktiker’, at MABEO Obermeyer in Hagen am Teutoburger Wald. Among the abundance of prepared workpieces, a few specialities were shown that we would not like to withhold.

As a contract manufacturer with a wide range of capabilities, Obermeyer has the order for complete machines, for example, and naturally tries to maximise its own added value as much as is economically viable. And the angle shown in the picture must also be produced. Due to the relatively small radius required, it is not possible to simply bend the round material – cracks would inevitably be the result. In addition to extreme energy consumption, annealing with a flame also generates a lot of waste heat and – not to forget – a high noise level.

Here, the employee shows how this task can be elegantly solved with induction. The tempering colours also show the relatively limited heating, one of the reasons why the energy costs are so low.