Skip to main content

Advertisement

SpringerLink
Log in

Theoretical investigation on the springback behavior of AA7B04 sheet in hydraulic bulge process

  • ORIGINAL ARTICLE
  • Published:
The International Journal of Advanced Manufacturing Technology Aims and scope Submit manuscript

Abstract

The derivation of theoretical formula about the amount of springback in the hydraulic bulge process using aviation aluminum alloy 7B04 was studied. Firstly, the traditional formula of plate bending theory was amended when the thickness normal stress was introduced into it. Based on it, the theoretical formula of amount of springback in hydraulic bulge process with thickness normal stress was deduced. Secondly, by using the numerical simulation and the experiment, the theoretical formula was proved to be correct. Thirdly, several classic analytical models for radius of curvature at the bulging vertex and bulging vertex thickness were verified by use of the hydraulic bulge experiments. When the cavity pressure was 30 MPa, the measured springback value of radius of curvature at the bulging vertex was 1.2 mm, while the result calculated by the theoretical formula was 0.8 mm and the theory error was 33.3 %. When the cavity pressure was 50 MPa, the measured springback value of radius of curvature at the bulging vertex was 3.13 mm, while the result calculated by the theoretical formula was 1.98 mm and the theory error was 36.7 %. According to the actual measurement, the predicted values of Hill’s model concerning radius of curvature at the bulging vertex agreed well with experimental values and the predicted values of the Jovane’s model concerning bulging vertex thickness agreed well with experimental values. The theoretical formula of amount of springback with the thickness normal stress which is obtained by the derivation is proved to be correct and reasonable by the plate hydraulic bulge experiment. In addition, the calculation of the springback value in sheet forming process which is in three-dimensional stress state can be guided by the theoretical formula.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Lam ACL, Shi ZS, Lin JG, Huang X (2015) Influence of residual stresses and initial distortion on springback prediction of 7B04-T651 aluminum plates in creep-age forming. Int J Mech Sci 103:115–126

    Article  Google Scholar 

  2. Ma ZW, Tong GQ, Chen F, Wang Q, Wang SC (2015) Grain size effect on springback behavior in bending of Ti-2.5Al-1.5Mn foils. J Mater Process Technol 224:11–17

    Article  Google Scholar 

  3. Zhu DB (2000) The new research progress of sheet metal stamping springback. Journal of Plasticity Engineering 7(1):11–17

    Google Scholar 

  4. Xiao JR (1999) Stamping technology. Mechanical Industry Press, Beijing, pp 135–136

    Google Scholar 

  5. Wang YM (2013) Research on the key technologies and springback mechanism of sheet hydroforming. Beijing University of Aeronautics and Astronautics, Beijing, pp 79–84

    Google Scholar 

  6. Ye YG, Xue Y, Duan JN (2009) Current study on simulation and compensation of springback in sheet metal forming process. Forging Equipment and Manufacturing Techniques 18–22

  7. Mattiasson K, Thilderkvist P (1995) Simulation of springback in sheet metal forming. Simulation of material processing: theory. Methods and Application 115–124

  8. Li XG, Yang YY, Wang YZ (2002) Effect of the material hardening mode on the springback simulation accuracy of v-free bending. J Mater Process Technol 123:209–211

    Article  Google Scholar 

  9. Li KP, Carden WP, Wagoner RH (2002) Simulation of springback. Int J Mech Sci 44(1):103–122

    Article  MATH  Google Scholar 

  10. Lee SW, Yang DY (1998) An assessment of numerical parameters influencing springback in explicit finite element analysis of sheet metal forming process. J Mater Process Technol 80–81:60–67

    Article  Google Scholar 

  11. Wang SW, Zhuang WM, Cao J, Lin JG (2010) An investigation of springback scatter in forming ultra-thin metal-sheet channel parts using crystal plasticity FE analysis. Int J Adv Manuf Technol 47(9):845–852

    Article  Google Scholar 

  12. Li L, Seo YH, Heo SC, Kang BS, Kim J (2010) Numerical simulations on reducing the unloading springback with multi-step multi-point forming technology. Int J Adv Manuf Technol 48(1):45–61

    Article  Google Scholar 

  13. Zhang RJ, Lang LH, Zafar R, Li LJ, Zhang WS (2016) Investigation into thinning and spring back of multilayer metal forming using hydro-mechanical deep drawing (HMDD) for lightweight parts. Int J Adv Manuf Technol 82(5):817–826

    Article  Google Scholar 

  14. Xie YS (2013) Prediction and experimental research on springback of double-curved shell hydroforming. Beijing University of Aeronautics and Astronautics, Beijing, pp 6–12

    Google Scholar 

  15. Hu SG, Chen HZ, Li DS, Wang XF (2004) Engineering analysis of sheet metal cold press forming. Beijing: Journal of Beijing University of Aeronautics and Astronautics 66–79

  16. Yu HQ, Chen DJ (2010) Principles of metal forming. China Machine Press 108–115

  17. Liu BH (2012) Research on forming mechanism and key technologies of warm sheet hydroforming. Beijing: Beijing University of Aeronautics and Astronautics 100–105

  18. Liu KN, Lang LH (2015) A novel approach to determine plastic hardening curves of AA7075 sheet utilizing hydraulic bulging test at elevated temperature. Int J Mech Sci 100:328–338

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Mechanical Engineering and Automation, Beihang University, Beijing, 100191, China

    Quanda Zhang, Lihui Lang, Yao Wang & Zhiying Sun

Authors
  1. Quanda Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Lihui Lang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yao Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Zhiying Sun
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Quanda Zhang.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhang, Q., Lang, L., Wang, Y. et al. Theoretical investigation on the springback behavior of AA7B04 sheet in hydraulic bulge process. Int J Adv Manuf Technol 87, 2861–2871 (2016). https://doi.org/10.1007/s00170-016-8689-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00170-016-8689-y

Keywords

Search

Navigation