Thermodynamics analysis of oxidation wear behavior of cemented carbide tools in high speed machining

Fang Shao; Zhanqiang Liu; Yi Wan

doi:10.1007/s11595-009-6867-6

Journal of Wuhan University of Technology Materials Science Edition ›› 2009, Vol. 24 ›› Issue (6) : 867 -870. DOI: 10.1007/s11595-009-6867-6

Article

Thermodynamics analysis of oxidation wear behavior of cemented carbide tools in high speed machining

Fang Shao ¹^,²^,^{^a}
, Zhanqiang Liu ²
, Yi Wan ¹

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Abstract

The essence of oxidation wear machanism of cenmented carbide tool was studied based on thermodynamics. Standard Gibbs free energy of possible reactions in cutting process at different temperature was calculated using substance Gibbs free energy function methods, and the sequence of reaction possibility order was researched as well as characteristics of every reaction. Theoretical calculation shows that WO₃, Co₃O₄, TiO₂ and CoWO₄ are the main resultants, which are proved with the experiment results.

Keywords

thermodynamics / carbide tool / high speed machining / oxidation wear

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Fang Shao, Zhanqiang Liu, Yi Wan. Thermodynamics analysis of oxidation wear behavior of cemented carbide tools in high speed machining. Journal of Wuhan University of Technology Materials Science Edition, 2009, 24(6): 867-870 DOI:10.1007/s11595-009-6867-6

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