Succesful doctorate at the IFW: Daniel Raffalt

12/18/2024

[Translate to English:] — Daniel Raffalt (center) with the examination committee (from left to right): Prof. Dr.-Ing. Roland Lachmayer, Prof. Dr.-Ing. Dirk Biermann, Prof. Dr.-Ing. Berend Denkena and Prof. Dr.-Ing. Hans Kurt Tönshoff

On December 18, 2024, Daniel Raffalt successfully completed his doctorate at the Institute of Production Engineering and Machine Tools (IFW) of the Faculty of Mechanical Engineering at Leibniz Universität Hannover. Under the supervision of Prof. Denkena and Prof. Biermann and in the presence of examination chair Prof. Lachmayer, Mr. Raffalt defended his thesis entitled “Manufacturing and application of grinding wheels for tool grinding”. In his thesis, Mr. Raffalt developed an innovative model for designing the grading of grinding wheels.

These grinding wheels are characterized by an axially graded grain concentration and size, which makes it possible to react very precisely to the different loads during flute grinding of solid carbide milling cutters. A key advantage of this technology is the significant reduction in the radial wear difference, which considerably improves the efficiency and service life of the tools.

Furthermore, his thesis covered not only the production of these novel grinding wheels, but also their preparation and practical use. Mr. Raffalt investigated both the characterization of the manufactured milling cutters and their performance in real production environments. These comprehensive studies provide important impulses for the further development of modern production technologies in the field of tool grinding and represented a valuable contribution to the research group on grinding tool production by opening up new perspectives for future developments.

Mr. Raffalt's work was supported as part of the DFG project “Gradiert”, which researches innovative concepts for the grading of grinding wheels. This funding from the German Research Foundation confirms the scientific importance of his work. The IFW congratulates Mr. Raffalt on his outstanding achievement and wishes him all the best for his future career. His contribution to science and in particular to the production of grinding tools is of great importance and demonstrates an impressive spirit of research and innovation.

Published by Thomas Geschwind

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