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Dressing of grinding wheels for ultra precision grinding of diffractive structures in tungsten carbide molds

: Bletek, Thomas; Klocke, Fritz; Hünten, Martin; Dambon, Olaf


Cheng, L.-C. ; Asian Society for Precision Engineering and Nanotechnology -ASPEN-:
Precision engineering and nanotechnology V : Selected, peer reviewed papers from the 5th International Conference on Asian Society for Precision Engineering and Nanotechnology (ASPEN 2013), November 12-15, 2013, Taipei, Taiwan
Pfäffikon: Trans Tech Publications, 2015 (Key engineering materials 625)
ISBN: 3-03826-594-2 (online)
ISBN: 978-3-03835-211-2 (Book)
ISBN: 978-3-03795-907-7 (CD-ROM)
ISBN: 978-3-03826-594-8 (online)
Asian Society for Precision Engineering and Nanotechnology (ASPEN International Conference) <5, 2013, Taipei>
Conference Paper
Fraunhofer IPT ()

The manufacturing of molds with diffractive structures requires new approaches in terms of grinding wheel geometry and preparation. To be able to manufacture small geometric features such as widths and depths in the micron range on the mold, ideally sharp edged grinding wheels should be used. This paper will present dressing procedures to create sharp edged grinding wheels by using metal alloy blocks. The results and achieved tip radii of the dressed resin bonded and metal bonded fine grained grinding wheels will be presented. Finally, grinding tests of a tungsten carbide mold with a diffractive structure are conducted and the results of the achieved form accuracy and surface roughness are presented.