Practical experiences with the deformation behavior of long bars during the induction hardening and subsequent processes

Hrůzek Lukáš - Preciz s.r.o. (Czech Republic)

Induction hardening is a very effective form of improving the mechanical properties of the material surface, especially its abrasion resistance. The main advantage of this process is that we apply most of the input energy exactly to the necessary places within the product. Above all, in times of necessary energy savings, this is a very competitive type of heat treatment. The challenge in the design and processing of individual parts is mainly the applied tension and the related deformation of the hardened part. Tolerances for the flatness of long parts, e.g. the linear guides of robotic lines, are in hundreds of millimeters, which, in combination with different mechanical properties along the cross-section of the parts, requires the insertion and control of deformations during and between production operations. The lecture shows our practical experience not only in induction hardening itself, but also in previous and subsequent production operations.

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