Isothermal Crimping of Thick-Walled Shells

Abstract:

Products with varying cross-sectional height are used in various hydraulic pipelines [1-4]. These products are very easy to manufacture. However, when it comes to hydraulic pipelines of fuel systems, it is essential to use materials resistant to aggressive effects, which are rather difficult to handle [5-8]. In this case, one of the possible options for obtaining such products is hot forming, namely crimping. In view of this, the article considers the crimping of shells made of titanium 6Al-4V alloy. Various combinations of technological parameters and their influence on the flow of metal and the geometry of products are considered. Rational deformation-rate conditions of deformation are found.

• Periodical: Materials Science Forum (Volume 1037)
• Pages: 293-299
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1037.293
• Online since: July 2021
• Authors: Andrey A. Pasynkov*, Sergey V. Nedoshivin, Nadezhda S. Pasynkova
• Keywords: Crimping, Hot Forming, Isothermal Deformation, Pressure

References

[1] V.N. Chudin, A.A. Pasynkov, Non-stationary processes of isothermal stamping, Forging and stamping. Metal forming, 2018 (6), pp.23-28.

[2] L. Dubar, J.P. Bricout, C. Wierre, P. Meignan New surface processes for cold forging of steels, Surface and Coatings Technology, Volume 102, Issues 1–2, pp.159-167.

DOI: 10.1016/s0257-8972(97)00626-9

[3] Raj Balendra, Yi Qin, Injection forging: engineering and research, Journal of Materials Processing Technology, 2004 (145), pp.186-206.

DOI: 10.1016/s0924-0136(03)00670-8

[4] Shengfa Zhua, Xincun Zhuanga, Dongkai Xucd, Yin Zhua, Zhen Zhao Flange forming at an arbitrary tube location through upsetting with a controllable deformation zone, Journal of Materials Processing Technology, 2019 (273), 116230.

DOI: 10.1016/j.jmatprotec.2019.05.011

[5] L.M. Alves, R.M. Afonso, C.M.A. Silva, P.A.F. Martins, Joining tubes to sheets by boss forming and upsetting, Journal of Materials Processing Technology, 2018 (2018), pp.773-781.

DOI: 10.1016/j.jmatprotec.2017.10.047

[6] Anees Al-Tamimia, Rooholamin Darvizeha, Keith Davey Experimental, Investigation into finite similitude for metal forming processes, Journal of Materials Processing Technology, 2018(262), pp.622-637.

DOI: 10.1016/j.jmatprotec.2018.07.028

[7] Su Y.H. Frank, Y.C. Chen, Y.A. Tsao Chi, Workability of spray-formed 7075 Al alloy reinforced with SiCp at elevated temperatures, Materials Science and Engineering, 2004(364), pp.296-304.

DOI: 10.1016/j.msea.2003.08.041

[8] A.A. Pasynkov, O.I. Boriskin, S.N. Larin, Theoretical studies of the operation of isothermal distribution of pipes from hard-deformed non-ferrous spaves under short-term creep conditions, Non-ferrous metals, 2018(2) pp.74-78.

DOI: 10.17580/tsm.2018.03.12

[9] A.A. Pasynkov, OS.N. Larin, Analysis of forming properties during the isothermal upsetting of cylindrical workpieces in the viscous-plasticity mode, IOP Conference Series: Materials Science and Engineering, 2018(441).

DOI: 10.1088/1757-899x/441/1/012026

[10] Youngmoo Kim, Young-Beom Song, Sung HoLee Microstructure and intermediate-temperature mechanical properties of powder metallurgy Ti–6Al–4V alloy prepared by the prealloyed approach, Journal of Alloys and Compounds, Volume 637, pp.234-241.

DOI: 10.1016/j.jallcom.2015.03.019

[11] Y.S. Lee, S.K. Hwang, Y.S. Chang, B.B. Hwang, The forming characteristics of radial–forward extrusion, Journal of Materials Processing Technology, 2001(113), pp.136-140.

DOI: 10.1016/s0924-0136(01)00705-1

[12] Su-Hai Hsiang, Chao-Shun Liao Study on hot extrusion of tubes, Journal of Materials Processing Technology, 2017(63), pp.254-259.

DOI: 10.1016/s0924-0136(96)02632-5