Diffusion and Oxidation Wear of PCBN Tool when Cutting Six Workpiece Materials Based on Thermodynamics

Fang Shao; Yu Ting Wang; Li Jing Zou; Xue Yan; Yan Ying Wu

doi:10.4028/www.scientific.net/KEM.589-590.128

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Influence of Work-Hardening on Wear Resistance of Machined Surface of Aviation Aluminum Alloy
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Diffusion and Oxidation Wear of PCBN Tool when Cutting Six Workpiece Materials Based on Thermodynamics
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 589-590Diffusion and Oxidation Wear of PCBN Tool when...

Diffusion and Oxidation Wear of PCBN Tool when Cutting Six Workpiece Materials Based on Thermodynamics

Abstract:

Cutting temperature always highly reaches over to 1000°C when high speed machining with PCBN tools. Diffusion of tool material element may have important influence on tool wear at such high temperature; the diffusion wear and oxidation wear have become the major wear mechanism. In this paper, the rules of diffusion wear and oxidation wear for PCBN cutting tools are proposed and analyzed based on thermodynamics theory. Dissolution concentrations in typical normal workpiece materials of PCBN tool material at different temperature are then calculated. Diffusion reaction rules in high temperature are developed and analyzed using Gibbs free energy criterion. The machining tests were conducted using the PCBN tools at different cutting speeds of 50, 95,100 and 180 m/min, feed of 0.1, 0.2 and depth of cut of 0.1, 0.8, 1, and 1.5 mm respectively on PUMA300LM numerically-controlled lathe. It was found that the theoretical results were uniform with the experimental data; the results will provide useful references for tool material design and selection.

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Periodical:

Key Engineering Materials (Volumes 589-590)

Pages:

128-133

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.589-590.128

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Cite this paper

Online since:

October 2013

Authors:

Fang Shao, Yu Ting Wang, Li Jing Zou, Xue Yan, Yan Ying Wu

Keywords:

Diffusion Wear, Oxidation Wear, PCBN Tool, Thermodynamic

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