The Influence of Cutting Parameters on Machined Surface Microhardness during High Speed Milling of Titanium Alloy TC17

Abstract:

The paper is concerned with the effect of cutting parameters on surface microhardness in the high speed milling of titanium alloy TC17 with carbide cutting tools by single factor experiment. To provide experimental evidence for process parameter optimization and surface quality control in high-speed cutting titanium alloy parts. The results show that to aim for lower hardening layer depth, cutting parameters can be optimized as: vc=391.7m/min, fz=0.05mm/z, ap=0.45mm. The effect of cutting parameters on microhardness has experienced surface hardening-softening - re-strengthening - the process of stabilizing，in the experimental range.

• Periodical: Advanced Materials Research (Volumes 443-444)
• Pages: 127-132
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.443-444.127
• Online since: January 2012
• Authors: Wei Jun Tian, Yu Li, Zhen Chao Yang, Chang Feng Yao, Jun Xue Ren
• Keywords: Feed per Tooth, High Speed Milling, Microhardness, Milling Depth, Milling Speed, Titanium Alloy TC17

References

[1] E. O. Ezugwu, Key improvements in the machining of aeifficult-to-cut aerospace superalloys, International Journal of Machine Tools & Manufacture , vol. 45, p.1353–1367, (2005).

DOI: 10.1016/j.ijmachtools.2005.02.003

[2] Z. C. Yang, D. H. Zhang, C. F. Yao, J. X. Ren and S. G. Du, Effects of High-Speed Milling Parameters on Surface Integrity of TC4 Titanium Alloy, Journal of Northwestern Polytechnical University, vol. 27, pp.30-32, 2009 (in chinese).

[3] B. R. Sridhar，G. Devananda，K. Ramachandra and B. Ramaraja , Effect of machining parameters and heat treatment on the residual stress distribution in titanium alloy IMI-834, Journal of Materials Processing Technology, vol. 139, pp.628-634, (2003).

DOI: 10.1016/s0924-0136(03)00612-5

[4] A. L. Mantle and A. E. K. Aspinwall, Surface integrity of a high speed milled gamma titanium aluminide, Journal of Materials Prossing Technology, vol. 118, pp.143-150, (2001).

DOI: 10.1016/s0924-0136(01)00914-1

[5] S. G. Du, C. Lu, J. X. Ren and Z. C. Yang, Study on Surface Morphology and Microstructure of Titanium Alloy TC4 Under High-speed Milling, Acta Aeronautica Et Astronautica Sinica vol. 29, pp.1710-1715, 2008 (in chinese).

[6] T. T. Li, Z. Q. Liu and X. Q. Wang, Study on Machinability of PCBN Tool in High-Speed Machining of Titanium Alloy, Tool Engineering, vol. 42, pp.24-27, 2008 (in chinese).

[7] A. R. C. Sharman, D. K. Aspinwall, R. C. Dewes, et al. The effects of machined workpiece surface integrity on the fatigue life of γ-titanium aluminide,. International Journal of Machine Tools & Manufacture, Vol. 41, p.1681–1685, (2001).

DOI: 10.1016/s0890-6955(01)00034-7

[8] G. A. Ibrahim, C. H. Che Haron, J. A. Ghani. The effect of Dry Maching on Surface Integrity of Titanium Alloy Ti-6AI-4V ELI,. Journal of Applied Sciences, Vol. 9, pp.121-127, (2009).

DOI: 10.3923/jas.2009.121.127

[9] C. H. Che-Haron, A. Jawaid. The effect of machining on surface integrity of titanium alloy Ti-6% AI-4%,. Journal of Material Processing Technology, Vol. 166, pp.188-192, (2005).

DOI: 10.1016/j.jmatprotec.2004.08.012