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Magnetführungen ermöglichen Genauigkeitssteigerungen in der Hartfräsbearbeitung

Magnetic guides enable increased accuracy in hard milling

Machine Prototype

The Institute of Production Engineering and Machine Tools (IFW) is pleased to announce the start of the DFG transfer project "Kompensation von Bahnfehlern bei dynamischen Bewegungen in Werkzeugmaschinen mit elektromagnetischer Linearführung" (Compensation of path errors in dynamic movements in machine tools with electromagnetic linear guides, SFB 871 T13). The aim of the project is to achieve an increase in productivity in hard milling through the standardized control of NC axes and magnet guidance.

In hard milling, precision is of the essence. In order to meet these requirements, it is necessary, among other things, to compensate for following errors of the axes. As part of this transfer project, an innovative solution is being developed to minimize this through a combined actuation of linear and magnetic guides in the 3-axis case.

Here, the basic knowledge from the successful Collaborative Research Center SFB 871 “Regeneration of Complex Capital Goods” on the design and commissioning of magnetic guides is used. This is intended to achieve a further increase in productivity, particularly in hard milling.

An essential component of this project is the machine prototype "Fast Machine", which was developed in the DFG research group FOR 164 “Struktur und Steuerung schneller Maschinen” (Structure and Control of Fast Machines) under the leadership of the IFW. The prototype combines an XY cross table with a magnetically guided Z-axis in 6 degrees of freedom and therefore represents an optimal basis for the hybrid actuation of several degrees of freedom.

The project is funded by the German Research Foundation (DFG) and will run for three years



For further information, please contact Derin Tasyürek, Institute of Production Engineering and Machine Tools (IFW) at Leibniz Universität Hannover, by phone +49 511 762 18257 r by e-mail at