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The Influences of Cutting Speed on the Fatigue of Titanium Alloy

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Abstract:

This research is concerned with the influences of cutting speed on the fatigue properties of high speed milled Ti-6.5Al-2Zr-1Mo-1V (TA15) titanium alloy. Four different cutting speeds ranging from 50 to 200m/min were used to mill the specimens for fatigue test, and the fatigue properties of them were studied at two stress levels: 80—800MPa and 90—900MPa. The fatigue lives of the specimens milled under different cutting speeds were compared. The fracture surfaces were analyzed using scanning electron microscope (SEM), and cyclic stress-strain properties of TA15 titanium alloy were investigated with a stress-strain gauge. The results showed that increasing cutting speed can help to improve the fatigue properties of titanium alloy, especially at a relatively low cyclic stress level.

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Periodical:

Applied Mechanics and Materials (Volumes 10-12)

Pages:

742-746

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.10-12.742

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Online since:

December 2007

Authors:

Guo Sheng Geng, Jiu Hua Xu

Keywords:

Cutting Speed, Fatigue Property, TiAl

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

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