Abstract
The friction at die–workpiece interface is an important parameter in metal forming processes, which affects the metal flow, cavity fill, surface quality, etc. The friction in the forming process is influenced by material properties and forming conditions. The friction in forming process of TA15 (Ti–6Al–2Zr–1Mo–1V) titanium alloy under high temperatures (isothermal forming) and low strain rates is studied here by ring compression test. The friction calibration curves are elaborated by means of finite element method. The research on the calibration curves and friction factor at the loading speed v = 0.1–1.0 mm/s and the conventional forging temperature (950°C) and near-beta forging temperature (970°C) is carried out. The influence of loading speed on friction calibration curves is similar to the influence on friction factor m: at the low (m <about 0.1) or high (m >about 0.7) friction condition, the influence of loading speed can be ignored, however the influence is notable in the midst magnitude (about 0.2–0.5). The temperature variation from 950°C to 970°C has little influence on friction calibration curves, but has notable influence on m under lubricated condition.
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References
Leyens C, Peters M (2003) Titanium and titanium alloys. Wiley-VCH, Weinheim
Lütjering G, Williams JC (2007) Titanium, 2nd edn. Springer, Heidelberg
Yang H, Fan XG, Sun ZC, Guo LG, Zhan M (2011) Recent developments in plastic forming technology of titanium alloys. Sci China Tech Sci 54(2):490–501
Shen G, Furrer D (2000) Manufacturing of aerospace forging. J Mater Process Tech 98:189–195
Bewlay BP, Gigliotti MFX, Utyashev FZ, Kaibyshev OA (2000) Superplastic roll forming of Ti alloys. Mater Des 21:287–295
Yeom JT, Kim JH, Park NK, Choi SS, Lee CS (2007) Ring-rolling design for large-scale ring product of Ti–6Al–4V alloy. J Mater Process Tech 187–188:747–751
Kong TF, Chan LC, Lee TC (2008) Numerical and experiment investigation perform design in non-axisymmetric warm forming. Int J Adv Manuf Tech 37:908–919
Hussain G, Gao L, Zhang ZY (2008) Formability evaluation of a pure titanium sheet in cold increment forming process. Int J Adv Manuf Tech 37:920–926
Shan D, Yang G, Xu W (2009) Deformation history and the resultant microstructure and texture in backward tub spinning of Ti–6Al–2Zr–1Mo–1V. J Mater Process Tech 209:5713–5719
He DH, Li DS, LI XQ, Jin CH (2010) Optimization on springback reduction in cold stretch forming of titanium-alloy aircraft skin. Trans Nonferrous Met Soc China 20:2350–2357
Kalpakjiana S (1985) Recent progress in metal forming tribology. Ann CIRP 34(2):585–592
Tan X (2002) Comparisons of friction models in bulk metal forming. Tribol Int 35:385–393
Malayappan S, Narayanasamy R (2004) An experiment analysis of upset forging of aluminium cylindrical billets considering the dissimilar friction conditions at flat die surface. Int J Adv Manuf Tech 23:636–643
Menezes PL, Kishore KK, Kailas SV (2009) Influence of friction during forming process—a study using a numerical simulation technique. Int J Adv Manuf Tech 40:1067–1076
Joun MS, Moon HG, Choi IS, Lee MC, Jun BY (2009) Effects of friction laws on metal forming processes. Tribol Int 42:311–319
Petersen SB, Martins PAF, Bay N (1997) Friction in bulk metal forming: a general friction model vs. the law of constant friction. J Mater Process Tech 66:186–194
Altan T, Oh SI, Gegel HL (1983) Metal forming: fundamentals and application. American Society for Metals, Metal Park
Mielnik EM (1991) Metalworking science and engineering. McGraw-Hill, New York
Sofuoglu H, Rasty J (1999) On the measurement of friction coefficient utilizing the ring compression test. Tribol Int 32:327–335
Fereshteh-Saniee F, Pillinger I, Hartley P (2004) Friction modelling for the physical simulation of the bulk metal forming processes. J Mater Process Tech 153–154:151–156
Rudkins NT, Hartley P, Pillinger I, Petty D (1999) Friction modelling and experimental observations in hot ring compression tests. J Mater Process Tech 60:349–353
Li LX, Peng DS, Liu JA, Liu ZQ (2001) An experiment study of the lubrication behavior of graphite in hot compression tests of Ti–6Al–4V alloy. J Mater Process Tech 112:1–5
Li LX, Peng DS, Liu JA, Liu ZQ, Jiang Y (2000) An experiment study of the lubrication behavior of A5 glass lubricant by means of the ring compression tests. J Mater Process Tech 102:138–142
Shen CW (2007) Research on material constitution models of TA15 and TC11 titanium alloys in hot deformation processes. Master thesis, Northwestern Polytechnical University (in Chinese)
Zhang DW, Yang H, Sun ZC (2010) Analysis of local loading forming for titanium-alloy T-shaped components using slab method. J Mater Process Tech 210:258–266
Sun Z, Yang H (2009) Microstructure and mechanical properties of TA15 titanium alloy under multi-step local loading forming. Mater Sci Eng A 523:184–192
Wang SL, Ruan XY, Yu XL, Chen SC, Hu ZS (1996) A research on constitutive equations for hot workings of metals. J Shanghai Jiaotong Univ 30(8):20–14, in Chinese
Kobayashi S, Oh SI, Altan T (1989) Metal forming and the finite-element method. Oxford University Press, New York
Hawkyard JB, Johnson W (1967) An analysis of the changes in geometry of a short hollow cylinder during axial compression. Int J Mech Sci 9(4):163–182
Ebrahimi R, Najafizadeh A (2004) A new method for evaluation of friction in bulk metal forming. J Mater Process Tech 152:136–143
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Zhang, DW., Yang, H., Li, HW. et al. Friction factor evaluation by FEM and experiment for TA15 titanium alloy in isothermal forming process. Int J Adv Manuf Technol 60, 527–536 (2012). https://doi.org/10.1007/s00170-011-3624-8
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DOI: https://doi.org/10.1007/s00170-011-3624-8