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Forming limit diagram of aluminum AA6063 tubes at high temperatures by bulge tests

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Abstract

A free bulge test and ductile fracture criteria were used to obtain the forming limit diagrams (FLD) of aluminum alloy AA6063 tubes at high temperatures. Ductile fracture criteria were calibrated using the results of uniaxial tension tests at various elevated temperatures and different strain rates through adjusting the Zener-Holloman parameter. High temperature free bulge test of tubes was simulated in finite element software Abaqus, and tube bursting was predicted using ductile fracture criteria under different loading paths. FLDs which were obtained from finite element simulation were compared to experimental results to select the most accurate criterion for prediction of forming limit diagram. According to the results, all studied ductile fracture criteria predict similarly when forming condition is close to the uniaxial tension, while Ayada criterion predicts the FLD at 473 K and 573 K very well.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

    Seyed Jalal Hashemi, Hassan Moslemi Naeini & Gholamhossein Liaghat

  2. Department of Mechanical Engineering, Yazd University, Yazd, Iran

    Rooholla Azizi Tafti

  3. Department of Mechanical Engineering, Kar Higher Education Institute, Qazvin, Iran

    Farzad Rahmani

Authors
  1. Seyed Jalal Hashemi
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  2. Hassan Moslemi Naeini
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  3. Gholamhossein Liaghat
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  4. Rooholla Azizi Tafti
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  5. Farzad Rahmani
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Corresponding author

Correspondence to Hassan Moslemi Naeini.

Additional information

Recommended by Associate Editor Dae-Cheol Ko

Seyed Jalal Hashemi is an assistant professor at Kar Higher Education Institute, Qazvin, Iran. His research interests are in tube and sheet hydroforming and deep drawing.

Hassan Moslemi Naeini is a professor at the faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran. His research interests are in roll forming, hydroforming and laser forming.

Gholamhossein Liaghat is a professor at the faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran. His research interests are in plasticity, metal forming and impact mechanics.

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Hashemi, S.J., Naeini, H.M., Liaghat, G. et al. Forming limit diagram of aluminum AA6063 tubes at high temperatures by bulge tests. J Mech Sci Technol 28, 4745–4752 (2014). https://doi.org/10.1007/s12206-014-1041-2

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  • DOI: https://doi.org/10.1007/s12206-014-1041-2

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