FOR 1897:  Low-Loss Electrical Steel Sheet for Energy-Efficient Electrical Drives

The aim of the Research Unit is to expand the scientific knowledge and to improve understanding of the dependence of the electromagnetic losses on the process parameters of the production, processing and operation of electrical steels used in electrical drives. The interdisciplinary nature of the Research Unit enables a holistic and systemic view of the entire process chain, from the materials production to their final application in the electric drive.
In terms of a continuous process and property modelling and taking into account the latest technological developments in the field the existing interdependencies between material properties, manufacturing and processing technologies as well as the specific conditions of application are taken into account. In two steps covering a total time frame of six years, the existing gaps in the virtual process chain will be closed to develop an integrated process model.
Within the project, the theoretical basis for explaining the behaviour and properties of electrical steel-based materials should be extended significantly. In particular, new scientific models regarding the dependence between electromagnetic losses and microstructural properties developed within production and processing of the electrical steels will be developed.

DFG Programme Research Units

• Approach to application-oriented properties of electrical steels by means of cold rolling and heat treatment (Applicant Hirt, Gerhard )
• Control and prediction of electromagnetically favourable microstructure of electrical sheet based on crystal plasticity and heat treatment (Applicant Korte-Kerzel, Ph.D., Sandra )
• Coordination Funds (Applicant Kawalla, Rudolf )
• Manufacturing of Electromagnetic Components out of Electrical Steel Sheets (Applicant Volk, Wolfram )
• Production of thin hot strips of high silicon bearing FeSi-strip using the integrated technology of thin slab casting and hot rolling (Applicant Kawalla, Rudolf )
• Project 5: Modeling of soft magnetic materials under consideration of the relevant parameters for electric drives (Applicant Hameyer, Kay )

Spokesperson Professor Dr.-Ing. Rudolf Kawalla