The flow line evolution of hot open ACDR process for titanium alloy discs

• Autorzy: Zheng Y. , Liu D. , Zhang Z. , Yang Y. , Ren L.

Identyfikatory

DOI

10.1016/j.acme.2017.03.005

• Języki publikacji: EN

Abstrakty

EN

Compared with traditional forging of titanium discs, the particular advantage for ACDR (axial closed die rolling) process is saving forming loading, but the weighted coefficient of compression and torsion happened on ACDR process show ambiguous even at the same axial forging ratio. Summed up from previous research, plastic yield process at ACDR forming is not only affected by the main stress caused from axial deformation, but also affected by shear stress from circumferential deformation. Flow line evolution as one of the manifestations, especially the circumferential deformation, should be studied to as basic theory to predict metal flow order, furthermore to define the deformation extent during ACDR process. Thus, this article presents flow line evolution laws with the three directions under different process conditions, emphasizing the difference of flow line evolution at different processing and the influence of process parameters associated with circles number n with the each direction. To achieve this purpose, numerical simulation with the essential boundary condition has been built. By means of systematic studying and discussing among deformation modes (stamping/machining, forging, high-pressure torsion, ACDR forming) and the process parameters (n, η, v, ω), the evolution law of flow line during hot ACDR on titanium alloy discs is achieved.

Słowa kluczowe

EN

ACDR (Axial closed die rolling); titanium alloy discs; FEM; flow line evolution

PL

stopy tytanu; kucie matrycowe; symulacja numeryczna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2017
• Tom: Vol. 17, no. 4
• Strony: 827--838
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr.

Twórcy

autor

Zheng Y.

• Northwestern Polytechnical University, School of Materials Science and Engineering, Xi'an 710072, PR China

autor

Liu D.

• Northwestern Polytechnical University, School of Materials Science and Engineering, Xi'an 710072, PR China

autor

Zhang Z.

• Northwestern Polytechnical University, School of Materials Science and Engineering, Xi'an 710072, PR China

autor

Yang Y.

• Northwestern Polytechnical University, School of Materials Science and Engineering, Xi'an 710072, PR China

autor

Ren L.

• Northwestern Polytechnical University, School of Materials Science and Engineering, Xi'an 710072, PR China

Bibliografia

• [1] J.W. Xu, W.D. Zeng, Z.Q. Jia, X. Sun, J.H. Zhou, Static globularization kinetics for Ti-17 alloy with initial lamellar microstructure, J. Alloys Compd. 603 (2014) 239–247.
• [2] J.W. Xu, W.D. Zeng, X. Sun, Z.Q. Jia, Microstructure evolution during isothermal forging and subsequent heat treatment of Ti-17 alloy with a lamellar colony structure, J. Alloys Compd. 637 (2015) 449–455.
• [3] J.Y. Liu, K.F. Zhang, Resistance heating superplastic forming and influence of current on deformation mechanism of TA15 titanium alloy, Int. J. Adv. Manuf. Technol. 76 (2015) 1673– 1680.
• [4] H.J. Marczinski, Axial closed die rolling, an economic hot forming method due to high precision and flexibility, J. Mater. Process. Technol. 34 (1992) 495–502.
• [5] P. Groche, D. Fritsche, E.A. Tekkaya, J.M. Allwood, G. Hirt, R. Neugebauer, Incremental bulk metal forming, CIRP Ann- Manuf. Techn. 56 (2) (2007) 635–656.
• [6] X.H. Pei, M. Zhang, Y.M. Hu, Rotary Forging, China Mechanical Industry Press, Beijing, 1991, pp. 11–15 (In Chinese).
• [7] T.B. Wu, Research and development of the rotary forging technology at home and abroad, J. Net Shape Forming Eng. 1 (3) (2009) 1–6 (In Chinese).
• [8] P.M. Standring, J.R. Moon, E. Appleton, Plastic deformation produced during indentation phase of rotary forging, Met. Technol. 7 (1) (1980) 159–166.
• [9] K. Kubo, Y. Hiral, M. Nakamura, Warm Rotary Forging of Thin Disk, in: 3rd International Conference on Rotary Metalworking Processes Romp 3, 1984, 31–42.
• [10] M. Merklein, R. Plettke, S. Opel, Orbital forming of tailored blanks from sheet metal, CIRP Ann-Manuf. Technol. 61 (1) (2012) 263–266.
• [11] X.H. Han, L. Hua, Prediction of contact pressure slip distance and wear in cold rotary forging using finite element methods, Tribol. Int. 44 (2011) 1742–1753.
• [12] X.H. Han, L. Hua, 3D FE modeling of cold rotary forging of a cylinder workpiece, J. Mater. Design 30 (2009) 2133–2142.
• [13] X.H. Han, L. Hua, Investigation on contact parameters in cold rotary forging using a 3D FE method, Int. J. Adv. Manuf. Technol. 214 (2014) 2402–2416.
• [14] Y. Pan, J. Liu, D. Liu, B.W. Wu, E.J. Sun, 3D numerical simulation of axial closed dies rolling process for disk forging, Forging Stamping Technol. 35 (4) (2010) 61–66 (In Chinese).
• [15] Y. Jiao, D. Liu, J. Liu, E.J. Sun, Optimization of process parameters for ACDR process of disk forging, Casting Forging Weld. 40 (13) (2011) 65–68 (In Chinese).
• [16] Y. Zheng, D. Liu, Y.H. Yang, L.J. Ren, Z. Zhang, G.J. Gao, Investigation on metal flow during the hot Axial Closed Dies Rolling process for titanium alloy discs, Int. J. Adv. Manuf. Technol. 87 (9) (2016) 2445–2458.
• [17] A.P. Zhilyaev, G.V. Nurislamova, B.K. Kim, Experimental parameters influencing grain refinement and microstructural evolution during high-pressure torsion, Acta Mater. 51 (2003) 753–765.
• [18] P. Hesam, P. Mehdi, F. Soheil, R.J. Mohammad, K. Gholamreza, Study on the dynamic and static softening phenomena in Al– 6Mg alloy during two-stage deformation through interrupted hot compression test, Measure. Vol. 77 (2015) 50–53.
• [19] R.J. Mohammad, P. Hesam, Study on the effect of post-annealing on the microstructural evolutions and mechanical properties of rolled CGPed aluminum-manganese-silicon alloy, Mater. Sci. Eng.: A Volume 679 (2017) 493–503.
• [20] R.J. Mohammad, P. Hesam, K. Gholamreza, K. Mohammad- Javad, H. Akbar, Study on the post-rolling direction of severely plastic deformed Aluminum-Manganese-Silicon alloy, Archiv. Civil Mech. Eng. 16 (4) (2016) 876–887.
• [21] P. Hesam, F. Soheil, R.J. Mohammad, K. Gholamreza, A. Ameneh, Combined effect of heat treatment and rolling on pre-strained and SPDed aluminum sheet, Mater. Sci. Eng.: A Volume 612 (2014) 371–379.
• [22] R.J. Mohammad, P. Hesam, K.G.S. Mohammadreza, K. Gholamreza, S. Masoud, On the effect of non-isothermal annealing and multi-directional forging on the microstructural evolutions and correlated mechanical and electrical characteristics of hot-deformed Al-Mg alloy, Mater. Sci. Eng.: A volume 657 (2016) 431–440.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)