A Study on Drilling Machinability of γ-TiAl Alloy

• Autorzy: Yang Hyunseok , Jung Woo-Chul , Kong Man-Sik , Lee Changhee

Identyfikatory

DOI

10.24425/amm.2021.136403

• Języki publikacji: EN

Abstrakty

EN

Intermetallic γ-TiAl alloy has excellent properties at high temperatures and is thus attracting attention as a substitute for nickel-based superalloy parts for turbine engines. However, γ-TiAl alloy is reported to be a difficult material to be machined due to its low ductility at room temperature, tensile strength, and thermal conductivity. in this study, a system capable of measuring thrust force (T_f) and torque (T_c) during the drilling process was constructed, and drilling processability according to the heat treated microstructure of γ-TiAl alloy was compared. As a result, it was confirmed that the thrust and torque of the γ-TiAl alloy having a microstructure in which the grains were refined by the heat treatment process was relatively low and rapidly stabilized, which is advantageous for drilling.

Słowa kluczowe

EN

γ-TiAl alloy; drilling; machinability; thrust; torque

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 4
• Strony: 951--954
• Opis fizyczny: Bibliogr. 8 poz., fot., rys.

Twórcy

autor

Yang Hyunseok

• Advanced Materials & Processing Center, Institute for Advanced Engineering, Yongin, South Korea
• Hanyang University, Division of Materials Science and Engineering, Seoul, South Korea

• https://orcid.org/0000-0002-8132-0609

autor

Jung Woo-Chul

• Advanced Materials & Processing Center, Institute for Advanced Engineering, Yongin, South Korea

• https://orcid.org/0000-0002-8543-8006

autor

Kong Man-Sik

• Advanced Materials & Processing Center, Institute for Advanced Engineering, Yongin, South Korea

autor

Lee Changhee

• Hanyang University, Division of Materials Science and Engineering, Seoul, South Korea

Bibliografia

• [1] M. Rahman, Y. S. Wong, A. R. Zareena, Machinability of titanium alloys, JSME Series C 46 (1), 107-115 (2003).
• [2] A. Beranoagirre, G. Urbikain, A. Calleja, L. Lacalle, Drilling Process in γ-TiAl Intermetallic Alloys, Materials (Basel) 2018 Dec; 11 (12): 2379. Published online 2018 nov 26. DOI: https://doi.org/10.3390/ma11122379
• [3] S. Castellanos, A. Cavaleiro, Machinability of Titanium Aluminides: A Review, Proceedings of The Institution of Mechanical Engineers 233, 3, 426-451. DOI: https://doi.org/10.1177/1464420718809386
• [4] M. Thomas, M. P. Bacos, Processing and characterization of TiAl-based Alloys: Towards an industrial scale. AerospaceLab 3, 1-11 (2011). hal-01183638
• [5] J. H. Kim, J. K. Kim, S. W. Kim, Y. H Park, S. E. Kim, Effect of Microstructure control on the Mechanical Properties of Hot Worked TiAl Alloy, Korean J. Met. Mater. 58, 7, 459-465 (2020). DOI: https://doi.org/10.3365/KJMM.2020.58.7.459
• [6] S. Bhowmick, A. Alpas, Minimum quantity lubrication drilling of aluminium-silicon alloys in water using diamond-like carbon coated drills, International Journal of Machine Tools & Manufacture 48, 1429-1443 (2008).
• [7] J. N. Wang, J. Yang, Q. Xia, Y. Wang, on the grain size refinement of TiAl alloys by cyclic heat treatment, Materials Science and Engineering A 329-331, 118-123. DOI: https://doi.org/10.1016/s0921-5093(01)01543-X
• [8] P. C. Priarone, S. Rizzuti, G. Rotella, Tool wear and surface quality in milling of a gamma-TiAl intermetallic. International Journal of Advanced Manufacturing Technology 61, 25-33 (2012). DOI: https://doi.org/10.1007/s00170-011-3691-x

Uwagi

1. This research was conducted as part of the core technology R&D project of the Defense Acquisition Program Administration and Defense Industry Technology Support Center.

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).