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Influence of grain size on the wear behavior of CVD diamond coatings in micro-EDM

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Abstract

In order to reduce wear and therewith enhance the microelectrical discharge machining (µ-EDM) results, a coated electrode was used. The paper presents the results of investigations into the influence of grain size of the boron-doped CVD diamond coating on the wear behavior in microsinking EDM. Experimental investigations show that nanocrystalline coatings exhibited smaller discharge craters compared to those for microcrystalline diamond coatings, and microcrystalline coating showed melted material around the discharge crater. The finding will be subjected to further investigations.

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References

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Authors and Affiliations

  1. Fraunhofer Institute for Production Systems and Design Technology, Pascalstrasse 8–9, 10587, Berlin, Germany

    Eckart Uhlmann & Markus Röhner

  2. Institute for Material Science and Technology of Metals, University Erlangen–Nürnberg, Martensstrasse 5, 91058, Erlangen, Germany

    Stefan Rosiwal & Katharina Bayerlein

Authors
  1. Eckart Uhlmann
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  2. Stefan Rosiwal
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  3. Katharina Bayerlein
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  4. Markus Röhner
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Correspondence to Markus Röhner.

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Uhlmann, E., Rosiwal, S., Bayerlein, K. et al. Influence of grain size on the wear behavior of CVD diamond coatings in micro-EDM. Int J Adv Manuf Technol 47, 919–922 (2010). https://doi.org/10.1007/s00170-009-2131-7

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  • DOI: https://doi.org/10.1007/s00170-009-2131-7

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