期刊
INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY
卷 54, 期 4, 页码 275-290出版社
INDERSCIENCE ENTERPRISES LTD
DOI: 10.1504/IJMPT.2017.082620
关键词
Ti-6Al-4V; cemented carbide tool; tribological characteristics; tool wear mechanism; wear equilibrium
资金
- Science Foundation for Young Scientists of Jilin Province [20160520026JH]
- National Natural Science Foundation of China [51505038]
In dry machining titanium alloys, tool wear is serious and machining efficiency is very low due to its low thermal conductivity and high chemical activity. The uncoated cemented carbide tool was used for the experiments of turning titanium alloy Ti-6Al-4V. Based on analysing the tribological characteristic of tool-chip and tool-workpiece interface using FEM, a scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectrometer (EDS) and X-ray photoelectron spectroscopy were used to analyse tool wear mechanism. The results showed that there existed great differences of the friction between tool-chip/workpiece interface and general friction. There existed serious adhesion, diffusion and oxidation at the tool-workpiece interface. There was an optimal cutting condition under which the equilibrium of oxidation wear and adhesion wear can be achieved, which made tool wear reduce.
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