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Optimization of post-stretching elongation in stretch bending of aluminum hollow profile

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Abstract

Post-stretching elongation is a crucial process parameter in stretch bending process because of its significant influence on the forming effects. In this paper, the displacement loading method was presented to control the movement of the jaw in order to avoid the instability of tensile force in mechanical loading method. Typical aluminum hollow profile used in high-speed trains was selected as the research object. Stretch bending process with five levels of post-stretching elongations was carried out by finite element (FE) simulation. The simulation results reveal that an increment of the post-stretching elongation leads to smaller shape error and springback but larger cross-sectional distortion and spatial twist. The forming defects index, which is based on normalizing and weighting four forming defects, was put forward to evaluate comprehensive forming effects. Furthermore, the backtracking method was used to obtain the optimal post-stretching elongation. Experimental validation was conducted on stretch-wrap bending machine. The experiment part meets the processing requirements, thereby validating the reasonability of the optimization method. Measured results showed consistency with numerical analysis which verifies the feasibility of using FE simulation to guide the experiment.

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References

  1. Corona E (2004) A simple analysis for bend-stretch forming of aluminum extrusions. Int J Mech Sci 46(3):1130–1135. doi:10.1016/j.ijmecsci.2004.03.010

    Article  Google Scholar 

  2. Guan Y, Yuan G, Sun S, Zhao G (2013) Process simulation and optimization of laser tube bending. Int J Adv Manuf Technol 65(1-4):333–342. doi:10.1007/s00170-012-4172-6

    Article  Google Scholar 

  3. Paralikas J, Salonitis K, Chryssolouris G (2009) Investigation of the effects of main roll-forming process parameters on quality for a V-section profile from AHSS. Int J Adv Manuf Technol 44(3-4):223–237. doi:10.1007/s00170-008-1822-9

    Article  Google Scholar 

  4. Fu L, Dong X, Wang P (2009) Study on one-step simulation for the bending process of extruded profiles. Int J Adv Manuf Technol 43(11-12):1069–1080. doi:10.1007/s00170-008-1786-9

    Article  Google Scholar 

  5. Yang H, Li H, Zhang Z, Zhan M, Liu J, Li G (2012) Advances and trends on tube bending forming technologies. Chin J Aeronaut 25(1):1–12. doi:10.1016/S1000-9361(11)60356-7

    Article  Google Scholar 

  6. Clausen AH, Hopperstad OS, Langseth M (2001) Sensitivity of model parameters in stretch bending of aluminium extrusions. Int J Mech Sci 43(2):427–453. doi:10.1016/S0020-7403(00)00012-6

    Article  MATH  Google Scholar 

  7. Diao KS, Zhou XB, Jin CH, Li XX, Criqui B (2004) An experimental study on stretch-wrap bending of aluminum profile. Proceedings of the 1st International Conference on New Forming Technology, Harbin, pp 277–282

    Google Scholar 

  8. Jin CH, Zhou XB, Diao KS, Li XX, Criqui B (2004) Numerical simulation of stretch-wrap bending process for aluminum extruded profiles. Proceedings of the 1st International Conference on New Forming Technology, Harbin, pp 265–270

    Google Scholar 

  9. Zhao J, Zhai R, Qian Z, Ma R (2013) A study on springback of profile plane stretch-bending in the loading method of pretension and moment. Int J Mech Sci 75:45–54. doi:10.1016/j.ijmecsci.2013.06.008

    Article  Google Scholar 

  10. Zhao J, Zhai R, Ma R, Zhan P, Song X (2013) Springback theory of plane bending and the progress of study on its engineering application. Steel Res Int 84(12):1230–1240. doi:10.1002/srin.201300029

    Article  Google Scholar 

  11. Liao J, Xue X, Lee M-G, Barlat F, Gracio J (2014) On twist springback prediction of asymmetric tube in rotary draw bending with different constitutive models. Int J Mech Sci 89:311–322. doi:10.1016/j.ijmecsci.2014.09.016

    Article  Google Scholar 

  12. Paulsen F, Welo T (2001) Cross-sectional deformations of rectangular hollow sections in bending: part II—analytical models. Int J Mech Sci 43(1):131–152. doi:10.1016/s0020-7403(99)00107-1

    Article  MATH  Google Scholar 

  13. Paulsen F, Welo T (2001) Cross-sectional deformations of rectangular hollow sections in bending: part I—experiments. Int J Mech Sci 43(1):109–129. doi:10.1016/s0020-7403(99)00106-x

    Article  MATH  Google Scholar 

  14. Seo DG, Chang SH, Heo YM (2003) Springback characteristics of tailor-welded strips in U-draw bending. Met Mater Int 9(6):571–576. doi:10.1007/BF03027257

    Article  Google Scholar 

  15. Gu RJ, Yang H, Zhan M, Li H, Li HW (2008) Research on the springback of thin-walled tube NC bending based on the numerical simulation of the whole process. Comput Mater Sci 42(4):537–549. doi:10.1016/j.commatsci.2007.09.001

    Article  Google Scholar 

  16. Paulsen F, Welo T, Sovik OP (2001) A design method for rectangular hollow sections in bending. J Mater Process Technol 113(1-3):699–704. doi:10.1016/s0924-0136(01)00671-9

    Article  Google Scholar 

  17. Vollertsen F, Sprenger A, Kraus J, Arnet H (1999) Extrusion, channel, and profile bending: a review. J Mater Process Technol 87(1–3):1–27. doi:10.1016/S0924-0136(98)00339-2

    Article  Google Scholar 

  18. Liang JC, Gao S, Teng F, Yu PZ, Song XJ (2014) Flexible 3D stretch-bending technology for aluminum profile. Int J Adv Manuf Technol 71(9-12):1939–1947. doi:10.1007/s00170-013-5590-9

    Article  Google Scholar 

  19. Clausen AH, Hopperstad OS, Langseth M (2000) Stretch bending of aluminium extrusions for car bumpers. J Mater Process Technol 102(1–3):241–248. doi:10.1016/S0924-0136(99)00487-2

    Article  Google Scholar 

  20. Zhao G, Chen H, Zhang C, Guan Y, Anjiang G, Peng L (2014) Die optimization design and experimental study of a large wallboard aluminum alloy profile used for high-speed train. Int J Adv Manuf Technol 74(1-4):539–549. doi:10.1007/s00170-014-5903-7

    Article  Google Scholar 

  21. Yan AM, Klappka I (2008) Springback in stretch forming process of aeronautic panel production by finite element simulation. Int J Mater Form 1(1):201–204. doi:10.1007/s12289-008-0026-z

    Article  Google Scholar 

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Liu, Cg., Zhang, Xg., Wu, Xt. et al. Optimization of post-stretching elongation in stretch bending of aluminum hollow profile. Int J Adv Manuf Technol 82, 1737–1746 (2016). https://doi.org/10.1007/s00170-015-7496-1

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  • DOI: https://doi.org/10.1007/s00170-015-7496-1

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