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  4. Cutting edge preparation of monolithic ceramic milling tools
 
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2021
Conference Paper
Title

Cutting edge preparation of monolithic ceramic milling tools

Abstract
Due to international competition, continuous increases in productivity, product quality and reduction of production costs are required. Especially, the development of milling tools made of innovative cutting materials and application-specific tool geometries for the machining of brittle materials are in focus to overcome these challenges. One approach to improve the performance and the tool behaviour concerning milling of graphite is the use of monolithic ceramic milling tools. Unfortunately, the high brittleness of the ceramic leads to breakouts on the cutting edge during the grinding process. This results in an increased maximum chipping of the cutting edge, which has a significant influence on the milling process. To improve the breakout behaviour, a cutting edge preparation with the immersed tumbling process was applied. To enable a process reliable cutting edge preparation, a suitable lapping medium, the influence of the processing time as well as the depth of imme rsion were investigated. Besides the maximum chipping of the cutting edge, the rounded cutting edge radius was also analysed. The results show that a process reliable cutting edge preparation of monolithic ceramic milling tools with a maximum chipping of the cutting edge RS,max ⤠3 µm and a rounded cutting edge radius of rβ ⤠7 µm could be realised. In future investigations, the experimental applicability of monolithic ceramic milling tools will be proved.
Author(s)
Uhlmann, Eckart  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Polte, Mitchel  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Polte, Julian  
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Hocke, Toni
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Mainwork
21st International Conference & Exhibition of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2021. Conference Proceedings  
Conference
European Society for Precision Engineering and Nanotechnology (EUSPEN International Conference & Exhibition) 2021  
Link
Link
Language
English
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK  
Keyword(s)
  • immersed tumbling process

  • ceramic

  • milling tools

  • cutting edge preparation

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