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FOR 1845: Ultra-Precision High Performance Cutting (UP-HPC)

The research group FOR1845 "Ultra-Precision High Performance Cutting" (UP-HPC) was a cooperation between the University of Bremen and Leibniz Universität Hannover funded by the German Research Foundation and running from April 2014 to June 2020. In Bremen, the Laboratory for Micro Machining (LFM, Professor Ekkard Brinksmeier) and the Bremen Institute for Mechanical Engineering (bime, Professor Bernd Kuhfuß) were involved, as was the Institute for Manufacturing Technology and Machine Tools (IFW, Professor Berend Denkena) in Hanover. The research group was coordinated by Dr Lars Schönemann (Leibniz IWT, Bremen) throughout its entire duration.

The aim of the research group was to reduce the disproportionately long main and auxiliary times in ultra-precision machining with scientific methods, in order to help this technology to become economically viable in the manufacturing industry. To this end, the following questions were researched in five sub-projects:


Sub-project 1 "Ultra-precise milling with multiple tools"
Sub-project 2 "Ultra-precise high-speed milling"
Sub-project 3 "Electromagnetic ultra-precision linear guidance"
Sub-project 4 "Balancing of spindles for ultra-precise high-speed milling"
Sub-project 5 "Model-based correction of tool paths in ultra-precision machining"

All of the research group's developments were brought together in a joint test stand (Figure 4) and tested in exemplary machining trials.

The research group FOR1845 "Ultra-Precision High Performance Cutting" was successfully completed in June 2020 after six and a half years. The results were published in a joint final publication, which appeared in Springer Lecture Notes:

Brinksmeier, Ekkard; Schönemann, Lars (Eds.) (2022): Ultra-precision High Performance Cutting. Report of DFG Research Unit FOR 1845. 1st ed. Cham: Springer Nature Switzerland AG (Lecture Notes in Production Engineering). ISBN: 978-3-030-83764-8 (Hardcover), 978-3-030-83765-5 (eBook). DOI: 10.1007/978-3-030-83765-5.