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Adhesion Model and Shedding Limit's Identification of the Oxide Film on the Surface of ELID Grinding Wheel

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Abstract:

The adhesion property of oxide film has great effects on the grinding quality and efficiency of ELID grinding. In this paper, adhesion strength model of oxide film is established, ELID grinding is conducted to nanometric cemented carbide and ordinary cemented carbide, ELID grinding force is measured, adhesive stress is calculated and the correctness of adhesion model is verified. The results show that the adhesion strength of oxide film is relatively greater, the transition from γ-Fe2O3 to α-Fe2O3 in the oxide film is relatively fuller and the polishing performance is relatively better while the grinding depth is smaller; with the deepening of grinding, the adhesion strength of oxide film reduces, the composition of the oxide film that transforms into α-Fe2O3 is less and the polishing ability reduces. The adhesion model of oxide film well reflects the adhesion property of oxide film, and the application of this model can represent the distribution, shedding and updating of the oxide film on the surface of grinding wheel.

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Periodical:

Advanced Materials Research (Volume 900)

Pages:

557-560

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.900.557

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Online since:

February 2014

Authors:

Ji Cai Kuai*

Keywords:

Adhesion Strength, Electrolytic in Process Dressing (ELID) Grinding Technology, Grinding Force, Oxide Film, Shear Stress

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

References

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