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Fabrication of Diamond Micro Tool Array (DMTA) for Ultra-Precision Machining of Brittle Materials

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Abstract:

A novel conditioning technique to precisely and effectively condition the nickel electroplated mono-layer coarse-grained diamond grinding wheel of 91m grain size was developed to fabricate a Diamond Micro Tool Array (DMTA) in ductile machining of brittle materials. During the fabricating process, a copper bonded diamond grinding wheels (91m grain size) dressed by ELID (electrolytic in-process dressing) was applied as a conditioner, a force transducer was used to monitor the conditioning force, and a coaxial optical distance measurement system was used to insitu monitor the modified wheel surface status. The experimental result indicates that the newly developed conditioning technique is applicable and feasible to generate required wheel topography of less than 2μm run-out error and grain geometries. The taper cutting test on BK7 proves the fabricated DMTA is capable of realizing ductile machining of brittle materials.

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Periodical:

Key Engineering Materials (Volume 329)

Pages:

737-742

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.329.737

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Online since:

January 2007

Authors:

Qing Liang Zhao, Da Gang Xie, Ekkard Brinksmeier, Otmann Riemer, Kai Rickens

Keywords:

Coarse-Grained Diamond Wheel, Conditioning, Diamond Micro Tool Array (DMTA), ELID (Electrolytic In-Process Dressing), Run-Out Error

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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