Browse > Article
http://dx.doi.org/10.14775/ksmpe.2019.18.11.076

Study on the Selection of End Mill Shape to Improve Tool Life in End Mill Process of Ti-6Al-4V Alloy  

Kim, Do Hyeog (Department of Mechanical Engineering, Changwon UNIV.)
Jung, Yoon Gyo (Department of Mechanical Engineering, Changwon UNIV.)
Cho, Young Tae (Department of Mechanical Engineering, Changwon UNIV.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.11, 2019 , pp. 76-82 More about this Journal
Abstract
This study aims to find the shapes of an end-mill with low cutting temperature during the end-mill process of Ti-6Al-4V alloy. Such ${\alpha}-{\beta}$ titanium alloys are increasingly more used for their high tensile strength and high corrosion resistance. The cutting characteristics of Ti-6Al-4V alloy were studied using an analytical method validated by comparing the estimated cutting resistance with that from experiments. The end-mill shape was analyzed using an experimental method. The end-mill shape with low cutting resistance and low cutting temperature was confirmed by analyzing the signal-to-noise ratios for various conditions. Then, the factors with significance factor of 95% or more were determined in the variance analysis. Finally, an end-mill shape that can ensure a low cutting temperature was proposed.
Keywords
End-mill Shape; Design of Experiment; Cutting Temperature; Finite Element Analysis; Titanium Alloy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kang, M. C., Kim, J. S., Lee, D. W., Kim, K. H., Ha, D. G., "Machinability Evaluation According to Variation of End mill Shape for High Speed Machining," Journal of the Korean Society for Precision Engineering, Vol. 19, No. 5 pp. 133-138, 2002.
2 Kim, G. H., "A Study on Characteristics of Cutting by Cutting Conditions in Titanium Machining," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 12, No. 1, pp.84-89, 2013.   DOI
3 Umbrello, D., "Finite Element Simulation of Conventional and High Speed Machining of Ti6Al4V Alloy," Journal of materials processing technology, Vol.196, pp.79-87, 2008.   DOI
4 Dandekar, C. R., Shin, Y. C., Barnes, J., "Machinability Improvement of Titanium Alloy (Ti-6Al-4V) via LAM and Hybrid Machining," International Journal of Machine Tools and Manufacture, Vol. 50, pp. 174-182, 2010.   DOI
5 Sutter, G., List, G.,"Very High Speed Cutting of Ti-6Al-4V Titanium Alloy - Change in Morphology and Mechanism of Chip Formation," International Journal of Machine Tools & Manufacture, Vol. 66, pp. 37-43, 2013.   DOI
6 Sheu, J.-J., Xu, D.-M., and Liu, C.-W., "Cutting Force and Tool Deflection Predictions for High Speed Machining of Hard to Cut Material," Advanced Materials Research, Vol. 154-155, pp. 1157-1164, 2011.   DOI
7 Mhamdi, M. B., Boujelbene, M., Bayraktar, E., Zghal, A.,"Surface Integrity of Titanium Alloy Ti-6Al-4V in Ball end Milling," Physics Procedia Vol. 25, pp. 355-362, 2012.   DOI
8 Mamedov, A., Lazoglu, I., "Thermal Analysis of Micro Milling Titanium Alloy Ti-6Al-4V," Journal of Materials Processing Technology, Vol. 299, pp.659-667, 2016.   DOI
9 Ye, D. H., Koo, H. Y., Park, T. K., Kim, J. S., “Analysis on the Effects of Tool Rake Angle and Helix Angle of a Flat End-mill in the Milling of Ti-alloy,” Journal of the Korean Society of Manufacturing Technology Engineers, Vol. 24, No. 5, pp. 508-513, 2015.   DOI
10 Fowler, G., Pashby, I. R., Shipway, P. H., "The Effect of Particle Hardness and Shape When Abrasive Water Jet Milling Titanium alloy Ti6Al4V," Wear, Vol. 266, pp. 613-620, 2009.   DOI
11 Karpat, T.,"Temperature Dependent Flow Softening of Titanium Alloy Ti-6Al-4V : An Investigation Using Finite Element Simulation of Machining," Journal of Materials Processing Technology, Vol. 211, pp. 737-749, 2011.   DOI
12 Wang, C. Y. et al., "Wear and breakage of TiAlN-and TiSiN-coated Carbide Tools During High-speed Milling of Hardened Steel," Wear, Vol. 336-337, pp. 29-42, 2015.   DOI
13 Bae, H. J., Park, H. S., “Analysis of Working Factors for Improvement of Surface Roughness on High Speed End-Milling,” Journal of the Korean Society for Precision Engineering, Vol. 21, No. 6, pp. 52-59, 2004.