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Geometric deviations in the production of micro-milling tools and their influence on the cutting process

Geometric deviations of ground micro-milling tools and their influences on the cutting performance
: Uhlmann, E.; Oberschmidt, D.; Kuche, Y.; Polte, M.

Bointon, P. ; European Society for Precision Engineering and Nanotechnology -EUSPEN-:
16th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2016. Proceedings : May 30th-3rd June 2016, Nottingham, UK
Bedford: Euspen, 2016
ISBN: 978-0-9566790-8-6
Fraunhofer IPK ()

For micro-milling tools with decreasing diameter D < 0.5 mm the requirements for the manufacturing rise up and the risk of geometrical deviations of the cutting edges increase. In this investigation industrial produced micro-milling tools with a diameter of D = 0.2 mm made of cemented carbide were analysed. Micro-milling tools with variable macro geometry were selected and used for the machining of mould steel. The influence of the geometrical deviations on the wear behaviour and the surface roughness of the machined steel were examined. It is shown that the variable tool geometry lead to wear of the minor cutting edges S'. Furthermore, an influence on the surface roughness of the machined workpiece is determined.