Dressing of Grinding Wheels for Ultra Precision Grinding of Diffractive Structures in Tungsten Carbide Molds

Thomas Bletek; Fritz Klocke; Martin Hünten; Olaf Dambon

doi:10.4028/www.scientific.net/KEM.625.161

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An Investigation of the Vibration Testing Method for Small Diameter Endmills
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Diffusion Wear Mechanism of Single Crystal Diamond Tool in Machining Die Steels
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Dressing of Grinding Wheels for Ultra Precision Grinding of Diffractive Structures in Tungsten Carbide Molds
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 625Dressing of Grinding Wheels for Ultra Precision...

Dressing of Grinding Wheels for Ultra Precision Grinding of Diffractive Structures in Tungsten Carbide Molds

Abstract:

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.

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Periodical:

Key Engineering Materials (Volume 625)

Pages:

161-166

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.625.161

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Online since:

August 2014

Authors:

Thomas Bletek*, Fritz Klocke, Martin Hünten, Olaf Dambon

Keywords:

Diffractive Structure, Dressing, Molds, Precision Glass Molding, Tungsten Carbide, Ultra Precision Grinding

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