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Residual stress and springback analysis for 304 stainless steel tubes in flexible-bending process

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Abstract

Flexible-bending is an innovative processing technique for profiles and tubes, which adjusts the curved shape of the forming part through numerical control. In this article, the flexible-bending forming precision of 304 stainless steel tubes was studied. The flexible-bending process of the tubes was simulated through finite element method in comparison with that of experiments. After the investigations of forming springback and residual stress, we conclude that regardless of changes in wall thickness or outer diameter, the residual stress decreases first and then increases following the increase of the ratio between outer diameter and wall thickness. Neither the wall thickening rate nor thinning rate is affected by wall thickness changes. The thrust of the pusher maintains stable during the bending process. The changes of both wall thickness and outer diameter affect the springback to some extents. When the radius of the target is constant, the springback can be optimized by adjusting the offset of the bending die and the distance between the guide and the die. The experiments agree well with the numerical simulations.

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References

  1. Li H, Yang H, Liu K (2013) Towards an integrated robust and loop tooling design for tube bending. Int J Adv Manuf Technol 65:1303–1318. https://doi.org/10.1007/s00170-012-4258-1

    Article  Google Scholar 

  2. Liang JC, Song G, Fei T, Yu PZ, Song XJ (2014) Flexible 3D stretch-bending technology for aluminum profile. Int J Adv Manuf Technol 71:1939–1947. https://doi.org/10.1007/s00170-013-5590-9

    Article  Google Scholar 

  3. Corona E (2004) Simple analysis for bend-stretch forming of aluminum extrusions. Int J Mech Sci 46:433–448. https://doi.org/10.1063/1.1766680

    Article  Google Scholar 

  4. Murata M, Kuboki T (2015) CNC tube forming method for manufacturing flexibly and 3-dimensionally bent tubes. Springer, Berlin, pp 363–368. https://doi.org/10.1007/978-3-662-46312-3_56

    Google Scholar 

  5. Hermes M, Chatti S, Weinrich A et al (2008) Three-dimensional bending of profiles with stress superposition. Int J Mater Form 1(1):133–136. https://doi.org/10.1007/s12289-008-0 -0

    Article  Google Scholar 

  6. Strano M, Colosimo BM, Castillo ED (2011) Improved design of a three roll tube bending process under geometrical uncertainties. AIP Conf Proc 1353(1):35–40. https://doi.org/10.1063/1.3589488

  7. Gemignani R, Strano M. US patent US 8141403 B2

  8. Vatter PH, Plettke R (2013) Process model for the design of bent 3-dimensional free-form geometries for the three-roll-push-bending process. Procedia Cirp 7(5):240–245. https://doi.org/10.1016/j.procir.2013.05.041

    Article  Google Scholar 

  9. Gantner P, Bauer H, Harrison DK et al (2005) Free-bending—a new bending technique in the hydroforming process chain. J Mater Process Technol 167(2–3):302–308. https://doi.org/10.1016/j.jmatprotec.2005.05.052

    Article  Google Scholar 

  10. Li P, Wang L, Li M (2016) Flexible-bending of profiles and tubes of continuous varying radii. Int J Adv Manuf Technol. https://doi.org/10.1007/s00170-016-8885-9

  11. Murata M, Ohashi N, Suzuki H (1989) New flexible penetration bending of a tube: 1st report, a study of MOS bending method. Trans Jpn Soc Mech Eng C 55:2488–2492. https://doi.org/10.1299/kikaic.55.2488

    Article  Google Scholar 

  12. Murata M (1996) Effects of inclination of die and material of circular tube in MOS bending method. Trans Jpn So Mech Eng C 62:3669–3675. https://doi.org/10.1299/kikaic.62.3669

    Article  Google Scholar 

  13. Murata M (1996) Effect of die profile and aluminum circular tube thickness with MOS bending. J Jpn Inst Light Met 46:626–631. https://doi.org/10.2464/jilm.46.626

    Article  Google Scholar 

  14. Li P, Wang L, Li M (2016) Flexible-bending of profiles with asymmetric cross-section and elimination of side bending defect. Int J Adv Manuf Technol 87:2853–2859. https://doi.org/10.1007/s00170-016-8673-6

    Article  Google Scholar 

  15. Strano M (2005) Automatic tooling design for rotary draw bending of tubes. Int J Adv Manuf Technol 26:733–740. https://doi.org/10.1007/s00170-003-2055-6

    Article  Google Scholar 

  16. Zhao GY, Liu YL, Yang H (2010) Effect of clearance on wrinkling of thin-walled rectangular tube in rotary draw bending process. Int J Adv Manuf Technol 50:85–92. https://doi.org/10.1007/s00170-009-2508-7

    Article  Google Scholar 

  17. Gantner P, Harrison DK, Silva AKMD, Bauer H (2004) New bending technologies for the automobile manufacturing industry. Proc Int Matador Conf 211-216. https://doi.org/10.1007/978-1-4471-0647-0_32

  18. Gantner P, Harrison DK, De Silva AK, Bauer H (2007) The development of a simulation model and the determination of the die control data for the free-bending technique. Proc Inst Mech Eng B J Eng Manuf 221:163–171. https://doi.org/10.1243/09544054JEM642

    Article  Google Scholar 

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Authors and Affiliations

  1. Dieless Forming Technology Center, Jilin University, Changchun, 130022, China

    Yongping Zhou, Pengfei Li, Mingzhe Li, Liyan Wang & Shuo Sun

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  1. Yongping Zhou
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  2. Pengfei Li
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  3. Mingzhe Li
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  4. Liyan Wang
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  5. Shuo Sun
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Correspondence to Mingzhe Li.

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Zhou, Y., Li, P., Li, M. et al. Residual stress and springback analysis for 304 stainless steel tubes in flexible-bending process. Int J Adv Manuf Technol 94, 1317–1325 (2018). https://doi.org/10.1007/s00170-017-0993-7

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  • DOI: https://doi.org/10.1007/s00170-017-0993-7

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