Quantitative Study of Shear Localization in Chip Formation while Machining Ti-6Al-4V

Dong Liu; Wu Yi Chen; Hong Hai Xu; Xue Ke Luo; Hui Liang

doi:10.4028/www.scientific.net/KEM.407-408.412

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 407-408Quantitative Study of Shear Localization in Chip...

Quantitative Study of Shear Localization in Chip Formation while Machining Ti-6Al-4V

Abstract:

The formation of shear localized chips in orthogonal machining of Ti-6Al-4V was investigated. The chips in different cutting velocities were collected and the structure of the adiabatic shear localization was examined by optical microscope and SEM after polishing and eroding. The serrated coefficient, serrated frequency and fibred coefficient were proposed in this paper to characterize the degree of serration and plastic shear flow of the chip quantitatively. Experimental results show that the width of the shear band decreased and the fibred coefficient of the shear band increased as cutting speed increased. The serrated and frequency, the serrated coefficient increased with the increase of cutting speed in the experimental range of cutting speeds.

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Periodical:

Key Engineering Materials (Volumes 407-408)

Pages:

412-415

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.407-408.412

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Online since:

February 2009

Authors:

Dong Liu, Wu Yi Chen, Hong Hai Xu, Xue Ke Luo, Hui Liang

Keywords:

Adiabatic Shear Banding, Chip Formation, Shear Localization, Titanium Machining

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References

[1] Abdelhay Mohanmed. A study of high strain rate generation of adiabatic shear bands in a titanium alloy [D]. The University of Alabama, (1988).

Google Scholar

[2] Karreem. Syed. Finite element simulation of chip segmentation in machining a Ti6Al-4V alloy.

Google Scholar

[3] D. Lee.J. Eng. Ind, Trans. ASME, 1985, 107(1): 55-63.

Google Scholar

[4] A. Gente, H.W. Hoffimeister. CIRP, 2001, 50(1): 49-52.

Google Scholar

[5] J．Q．Xie， A.E. Bayouml, H.M. Zbib. Journal of materials engineering and performance, 1995, 4(1): 32-39.

Google Scholar

[6] A. Molinari, C. Musquar and G. Sutter. International Journal of Plasticity, 2002, 18 : 443-459.

Google Scholar

[7] J. Hua,R. Shivpuri. Proceedings of the Ninth ISPE international conference on concurrent engineering, cranfield, UK, 2002, 27-31.

Google Scholar

[8] Jiang Hua, Rajiv Shivpuri. Journal of materials processing Technology, 2004, 150: 124-133.

Google Scholar

[9] Sung-Han Rhim, Soo-Ik Oh. Journal of Materials Processing Technology, 2006, 171: 417-422.

Google Scholar

[10] T.J. Burns, M.A. Davies. International Journal of Plasticity, 2002, 18: 487-506.

Google Scholar

[11] C.Z. Duan, M.J. Wang. Journal of Materials Processing Technology, 2005, 168: 102-106 Fig. 5: The shear localization characteristics variation with the cutting speed.

Google Scholar