Skip to main content

Advertisement

SpringerLink
Log in

A study on drawbead restraining force effectiveness

  • Technical Paper
  • Published:
Journal of the Brazilian Society of Mechanical Sciences and Engineering Aims and scope Submit manuscript

Abstract

Springback phenomenon is mainly a problem of residual stresses, which are released after die opening. The use of drawbeads in the blankholders of forming dies is a widely taken measure in order to influence the stress state through the thickness of the sheet material. Besides, blankholder closing force has implications in die design and energy consumption during production. This paper presents a methodology to evaluate the efficiency of different drawbead geometries regarding restraining capacity. An efficiency parameter was created which allows for a comparison between drawbead geometries. It is based on the measurement of the maximal in-plane strain in the test part which can be generated with a determined blankholder force. Finite element simulations using commercial software have been run on a test part, using different drawbead geometries and closing forces. The simulations were experimentally validated using a test die. With the methodology, it is possible to determine the most efficient drawbead geometry for a definite sheet metal part, allowing for reducing die investments and press energy consumption per part produced.

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

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

Similar content being viewed by others

References

  1. Bae GH, Song JH, Huh H, Kim SH, Park SH (2007) Simulation-based prediction model of the draw-bead restraining force and its application to sheet metal forming process. J Mater Process Technol 187–188:123–127

    Article  Google Scholar 

  2. Beck S (2000) Control of the deep drawing process through active draw beads. In: Proceedings of the international conference “New developments in sheet metal forming”, Stuttgart, Germany. ISBN 3-88355-292-5

  3. Carden WD, Geng LM, Matlock DK, Wagoner RH (2002) Measurement of springback. Int J Mech Sci 44:79–101

    Article  MATH  Google Scholar 

  4. Chalal H, Racz SG, Balan T (2012) Springback of thick sheet AHSS subject to bending under tension. Int J Mech Sci 59:104–114

    Article  Google Scholar 

  5. Dahlke P (2004) High-strength steels—experiences from the tool shop, the press shop and the body in white shop. In: Proceedings of the international conference “New developments in sheet metal forming”, Stuttgart, Germany. ISBN 3-88355-332-8

  6. Eggersten PA, Mattiasson K (2009) On the modeling of the bending-unbending behavior for accurate springback predictions. Int J Mech Sci 51:547–563

    Article  Google Scholar 

  7. Eggersten PA, Mattiasson K (2012) Experiences from experimental and numerical springback studies of a semi-industrial forming tool. Int J Mater Form 5:341–359

    Article  Google Scholar 

  8. Firat M, Kaftanoglu B, Eser O (2008) Sheet metal forming analysis with an emphasis on the springback deformation. J Mater Process Technol 196:135–148

    Article  Google Scholar 

  9. Green DE (2005) Description of numisheet 2005 benchmark #3 stage-1: channel draw with 75% drawbead penetration, Numisheet 2005 Part B, pp 894–904

  10. Hayashi Y, Takagi M (1984) Control of side wall curl in draw-bending of high strength steel sheets. Adv Technol Plast I:735–740

    Google Scholar 

  11. Padmanabhan R, Sung J, Lim H, Oliveira MC, Menezes LF, Wagoner RH (2008) Influence of draw restraining force on the springback in advanced high strength steels. Int J Mater Form Suppl 1:177–180

    Article  Google Scholar 

  12. Smith LM, Zhou YJ, Zhou DJ, Du C, Wanintrudal C (2009) A new experimental test apparatus for angle binder draw bead simulations. J Mater Process Technol 209:4942–4948

    Article  Google Scholar 

  13. WAS (2009) Advanced high strength steel (AHSS) application guidelines, Version 4.1, pp 2–56. World Auto Steel Association, www.worldautosteel.org

Download references

Author information

Authors and Affiliations

  1. R&D Department, Bruning Tecnometal Ltda., Panambi, RS, Brazil

    J. H. C. de Souza

  2. Universidade Regional do Noroeste do Rio Grande do Sul (UNIJUI), Ijuí, Brazil

    J. H. C. de Souza

  3. Bruning Tecnometal Ltda., Panambi, RS, Brazil

    L. Stürmer & I. Härter

Authors
  1. L. Stürmer
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. I. Härter
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J. H. C. de Souza
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to J. H. C. de Souza.

Additional information

Technical Editor: Alexandre Mendes Abrao.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Stürmer, L., Härter, I. & de Souza, J.H.C. A study on drawbead restraining force effectiveness. J Braz. Soc. Mech. Sci. Eng. 38, 109–117 (2016). https://doi.org/10.1007/s40430-015-0421-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40430-015-0421-6

Keywords

Search

Navigation