Cite the paper
Mechanics, Materials Science & Engineering, 4 , pp. 57-71, 2017, ISSN: 2412-5954.
Authors: Michael Storchak, Lucas Saxarra, Like Jiang, Yiping Xu, Xun Li
ABSTRACT. As titanium alloys have unique mechanical properties, the b-titanium alloy Ti10V2Fe3Al (Ti-1023) is widely used by the aerospace industry, among other things, when producing critical components such as parts of the fuselage and the wings as well as various rotating components due to its extremely high ratio of strength to density, its great resistance to fatigue, its excellent resistance to corrosion and fracture toughness. Within the group of titanium materials, the alloys of the b-phase are among the materials which are most difficult to machine. In particular, this concerns milling processes widely used in the production of various complicated components. In order to be able to successfully apply the machining process of the titanium alloy Ti-1023, optimum cutting parameters of the tool have to be used, guaranteeing a required machining quality. This paper presents the results of experimental tests into the formation of quality characteristics such as roughness and microhardness as well as residual stresses and their simulation depending on cutting parameters such as cutting speed, feed and radial depth of cut. To analyse more closely how the cutting parameters affect the quality characteristics in milling, the individual dependences of the effects were described in exponential equations. The exponents for the exponential equations were established according to the Gaussian elimination method. The experimental results obtained and the developed FEM cutting models serve as a basis for further optimising the machining processes of titanium alloys.
Keywords: machining of titanium alloy, surface roughness, microhardness, residual stress, simulation
 Boyer, R., & Briggs, R. (2005). The Use of β Titanium Alloys in the Aerospace Industry. Journal of Materials Engineering and Performance, 14(6), 681-685. doi: 10.1361/105994905×75448.
 Biermann, D.; Machai, C. (2010). Die Alternative zu Ti-6Al-4V. Werkstatt und Betrieb, 143(4), 56–58.
 Machai, C., & Biermann, D. (2011). Machining of β-titanium-alloy Ti–10V–2Fe–3Al under cryogenic conditions: Cooling with carbon dioxide snow. Journal of Materials Processing Technology, 211(6), 1175-1183. doi:10.1016/j.jmatprotec.2011.01.022.
 Yang, H. C., Chen, Z. T., & Jiang, L. K. (2013). Experimental Study on Hardness of Titanium Alloy Ti-1023 by Milling. AMR Advanced Materials Research, 690-693, 2446-2449. doi:10.4028/www.scientific.net/amr.690-693.2446.
 Changfeng, Y., Daoxia, W., Liang, T., Junxue, R., Kaining, S., & Zhenchao, Y. (2013). Effects of cutting parameters on surface residual stress and its mechanism in high-speed milling of TB6. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 227(4), 483-493. doi:10.1177/0954405413475771.
 Houchuan, Y., Zhitong, C., & Zitong, Z. (2014). Influence of cutting speed and tool wear on the surface integrity of the titanium alloy Ti-1023 during milling. The International Journal of Advanced Manufacturing Technology Int J Adv Manuf Technol, 78(5-8), 1113-1126. doi:10.1007/s00170-014-6593-x.
 Wagner, V., & Duc, E. (2014). Study of Ti-1023 milling with toroidal tool. The International Journal of Advanced Manufacturing Technology Int J Adv Manuf Technol, 75(9-12), 1473-1491. doi:10.1007/s00170-014-6217-5.
 DIN EN ISO 4287. (1997). Geometrical Product Specifications (GPS) – Surface texture: Profile method – Terms, definitions and surface texture parameters.
 DIN EN ISO 14577. (2015). Instrumented indentation test for hardness and materials parameters, 2015.
 Beutelspracher, A. Lineare Algebra. (2014). Eine Einführung in die Wissenschaft der Vektoren, Abbildungen und Matrizen. Springer Spektrum, 386.
 Deform-User Manual SFTC-Deform V11.0.2. (2014). Columbus (OH), USA.
 Johnson, G. R.; Cook, W. H. (1983). A constitutive model and data for metals subjected to large strains, high strain and high temperatures. Proc. 7th Int. Symp. On Ballistics, The Hague, Netherlands, 541–547.
 Cockroft, M. G.; Latham, D. J. (1968). Ductility and workability of metals. Journal of the Institute of Metals, 96, 33–39.
 Robertson, D. G., & Mcshane, H. B. (1998). Analysis of high temperature flow stress of titanium alloys IMI 550 and Ti-10V-2Fe-3AI during isothermal forging. Materials Science and Technology Mats. Sci. Tech., 14(4), 339-345. doi:10.1179/026708398790301403.
 Bao, R., Huang, X., & Cao, C. (2006). Deformation behavior and mechanisms of Ti-1023 alloy. Transactions of Nonferrous Metals Society of China, 16(2), 274-280. doi:10.1016/s1003-6326(06)60046-0.
 Shrot, A., & Bäker, M. (2012). Determination of Johnson–Cook parameters from machining simulations. Computational Materials Science, 52(1), 298-304. doi:10.1016/j.commatsci.2011.07.035.
 Klocke, F., Lung, D., & Buchkremer, S. (2013). Inverse Identification of the Constitutive Equation of Inconel 718 and AISI 1045 from FE Machining Simulations. Procedia CIRP, 8, 212-217. doi:10.1016/j.procir.2013.06.091.
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