Advertisement

Influence of thickness on formability in 6082-T6

  • G. L. Manco
  • G. AmbrogioEmail author
Incremental forming: L. Filice

Abstract

Incremental Sheet Forming is a promising process for the small batch manufacturing of sheet metal parts due to its flexibility and to the high formability achievable. In the Incremental Sheet Forming process a localised state of deformation is imposed by the CNC controlled motion of a simple tool. Although the process potentiality, its industrial application is still bordered by some drawbacks such as excessive material thinning, part inaccuracy or process time. In the last years, several works were carried out by the researcher all over the world mainly focused on material formability. However further efforts are required in order to overcome the above specified drawbacks. In particular, concerning the material thinning, the simple Sine Law allows to predict the actual sheet thickness in a rough way. In fact, the Sine Law takes into account the initial thickness and the wall slope angle, neglecting all the others process parameters. For this reason, a more robust tool which takes into account the whole process complexity is strongly necessary. In this paper a wide investigation on 6082-T6 aluminium alloy was carried out with the aim to determine the influence of process parameters on thinning behaviour. Finally, with the aim to obtain a reliable model to predict the thinning, the ANOVA analysis was executed on the experimental data designed by DOE. All the other details are reported in the paper.

Keywords

Incremental Forming thinning DoE 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    J.J. Park, Y.H. Kim, Fundamental studies on the incremental sheet metal forming technique, J. of Materials Processing Technology, 140: 447–453, 2003.CrossRefGoogle Scholar
  2. [2]
    J. Jeswiet, F. Micari, G. Hirt, A. Bramley, J. Duflou, J. Allwood, Asymmetric Single Point Incremental Forming of Sheet Metal, Annals of the CIRP, 54/2: 88–114, 2005.CrossRefGoogle Scholar
  3. [3]
    G. Ambrogio, L. De Napoli, L. Filice, F. Gagliardi, M. Muzzupappa, Application of Incremental Forming process for high customised medical product manufacturing, International Journal of Materials Processing Technology , 162–163: 156–162, 2005.CrossRefGoogle Scholar
  4. [4]
    J. Jeswiet, E. Hagan, Rapid Proto-Typing with sheet metal. CNC RFIN, International Journal of Forming Process, 6/3–4: 315–324, 2003.CrossRefGoogle Scholar
  5. [5]
    M. Shim, J.J. Park, The formability of aluminum sheet in incremental forming, International Journal of Materials Processing Technology, 113: 654–658, 2001.CrossRefGoogle Scholar
  6. [6]
    Y.H. Kim, J.J. Park, Effect of process parameters on formability in incremental forming of sheet metal, International Journal of Materials Processing Technology, 130–131: 42–46, 2003.Google Scholar
  7. [7]
    Reagan, J., Smith, E. Metal Spinning, Lindsay Publications, (1991).Google Scholar
  8. [8]
    G. Hussain, L. Gao: A novel method to test the thinning limit of sheet-metals in negative incremental forming. International Journal of Machine Tools and Manufacture, 47: 419–435, 2007.CrossRefGoogle Scholar
  9. [9]
    K. Kitazawa, A. Nakajima, Cylindrical incremental drawing of sheet metals by CNC incremental forming process, Proc. of the 6th ICTP Conference, Nuremberg, (1999) 1495–1500.Google Scholar
  10. [10]
    G. Ambrogio, L. Filice, F. Gagliardi and F. Micari: Sheet thinning prediction in Single Point Incremental Forming. Advanced Material Research, 6–8: 479–486, 2005.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag France 2010

Authors and Affiliations

  1. 1.Dept. of Mechanical EngineeringUniversity of CalabriaCalabriaItaly
  2. 2.University of CalabriaPonte P. Bucci 87036 Rende (CS)CalabriaItaly

Personalised recommendations