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Experiment Study on Improving Lubrication of Gundrill under MQL by Shoulder Dub-Off Modification

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Abstract:

Coolant for gundrill under MQL is impermissible to be high pressure, large quantity, or direct emission on the interface. These restricts would be seriously unfavorable to lubrication. Experiments reveal that poor lubricating always appear on the hole periphery with dark burns on the hole wall. A prospective solution is to regulate the pressure distribution by modifying the dub-off structure. Its derivation is detailed in this paper. Its validity is demonstrated by practical experiments.

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Periodical:

Applied Mechanics and Materials (Volumes 457-458)

Pages:

502-509

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.457-458.502

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Online since:

October 2013

Authors:

Zhan Yang Zhang, Wei Zhang*, Feng Bao He, Jian Zhong Hu

Keywords:

Gundrill, Lubrication, MQL, Pressure, Shoulder Dub-Off

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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References

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