Paper Titles
Preface
Mechanical Evaluation of 6060 Aluminum Alloy under Elevated Extrusion Ram Speed Using Liquid Nitrogen Die Cooling
p.1
An Experimental Investigation of the Effect of Compression Calibration on the Ductility of AA6061 Extrusions
p.15
Numerical Investigation of Round Profile Production: A Fem-Based Comparison between Friction Stir Extrusion and Conventional Extrusion
p.25
Compensating Property Fluctuations in Cold Extrusion Using Adaptive Dies
p.35
Lightweight Battery Housings from Thin-Walled, Large-Scale Aluminum Profiles by Hot Extrusion
p.51
Calibrating a Lode-Parameter-Dependent Damage Evolution Equation to Cold Extrusion Experiments
p.63
Effect of Chemical Composition on Hot Extrudability and Tribological Behavior of 7000 Series Aluminum Alloys
p.73
Using Tungsten Inert Gas Welding Equipment to Locally Heat Tubes and Achieve Inhomogeneous Thickness in Tube Sinking Processes
p.83

An Experimental Investigation of the Effect of Compression Calibration on the Ductility of AA6061 Extrusions

Article Preview
View Pdf By email

Abstract:

The growing use of extruded aluminum components in vehicle structures necessitates both strength and ductility to meet energy absorption requirements. In this study, a new compression calibration method for multi-chamber, hollow sections was developed with the aim of improving dimensional accuracy while enhancing the ductility of AA6061 extruded profiles. The influence of this method on mechanical properties was investigated through uniaxial tensile tests, three-point VDA bending tests, and axial crush tests. The uniaxial tensile test results revealed a reduction in the (logarithmic) strain at necking, while no significant changes were observed in yield and ultimate tensile strengths. On the other hand, the VDA tests showed a systematic increase in the normalized bending angle, indicating improved energy absorption characteristics. Visual inspection and the absorbed energy obtained by axial crush tests supported the findings in the VDA tests, indicating the compression calibration method enhances the crushability of extruded AA6061 profiles, although this improvement is not identified in standard tensile data. Overall, this work introduces a new, industrial calibration method for hollow extrusions that also enhances crushability.

You might also be interested in these eBooks
Extrusion and Drawing View Preview

Info:

Periodical:

Key Engineering Materials (Volume 1048)

Pages:

15-23

DOI:

https://doi.org/10.4028/p-tFP2lH

Citation:

Cite this paper

Online since:

April 2026

Authors:

Mustafa Can Uzun*, Togeir Welo

Keywords:

Aluminum Extrusion, Ductility, Mechanical Calibration, Mechanical Properties

Export:

RIS, BibTeX

Permissions:

Creative Commons CC BY 4.0

Share:

Citation:

* - Corresponding Author

References

[1] J. Møretrø, U. H. Tundal, S. Tjoetta, and F. Paulsen, "Use of Calibration to Achieve Tight Tolerances in High-Strength and Ductile Automotive Profiles," in Proceedings of 13th International Aluminum Extrusion Technology Seminar, Orlando, Florida: The Aluminum Extruders Council and The Aluminum Association., May 2024.

Google Scholar

[2] T. Welo and C. A. Raknes, "Cost-Effective, Precision Calibration of Aluminum Extrusions for Automotive Applications," in Proceedings of the 12th International Aluminum Extrusion Technology Seminar, Orlando, Florida: Extrusion Technology for Aluminum Profiles Foundation, May 2022.

Google Scholar

[3] K. Qvale, O. S. Hopperstad, O. Reiso, U. H. Tundal, C. D. Marioara, and T. Børvik, "An experimental study on pre-stretched double-chamber 6000-series aluminium profiles subjected to quasi-static and dynamic axial crushing," Thin-Walled Struct., vol. 158, p.107160, Jan. 2021.

DOI: 10.1016/j.tws.2020.107160

Google Scholar

[4] H. Granum, O. R. Myhr, T. Børvik, and O. S. Hopperstad, "Effect of pre-stretching on the mechanical behaviour of three artificially aged 6xxx series aluminium alloys," Mater. Today Commun., vol. 27, p.102408, Jun. 2021.

DOI: 10.1016/j.mtcomm.2021.102408

Google Scholar

[5] D. Leśniak et al., "Structure and Mechanical Properties of AlMgSi(Cu) Extrudates Straightened with Dynamic Deformation," Materials, vol. 17, no. 16, p.3983, Aug. 2024.

DOI: 10.3390/ma17163983

Google Scholar

[6] D. Leśniak et al., "Thermo-mechanical processing of Al–Mg–Si(Cu) alloy extrusions based on dynamic stretching," Arch. Civ. Mech. Eng., vol. 25, no. 5–6, p.269, Sep. 2025.

DOI: 10.1007/s43452-025-01323-2

Google Scholar

[7] J. Victor, A. Poznak, L. Itchue, and M. Tozier, "Overview of Methods to Evaluate Extruded Profile Ductility as It Relates to Automotive Profiles," in Proceedings of 13th International Aluminum Extrusion Technology Seminar, Orlando, Florida: The Aluminum Extruders Council and The Aluminum Association., May 2024.

Google Scholar

[8] N. Parson, J. Fourmann, and J.-F. Beland, "Aluminum Extrusions for Automotive Crash Applications," SAE International, Mar. 2017.

DOI: 10.4271/2017-01-1272

Google Scholar

[9] N. Parson, J.-F. Béland, and J. Fourmann, "Extrusions for Automotive Crash Applications," in Proceedings of 11th International Aluminum Extrusion Technology Seminar, Chicago, Illinois: Extrusion Technology for Aluminum Profiles Foundation, May 2016.

Google Scholar

[10] F. Paulsen and C. Handing, "Method for calibrating a metal profile blank which is configured as a hollow-chamber profile and which has at leasts one solid wall," US Patent 2022/062965 A1

Google Scholar

[11] F. Liu et al., "Microstructure and mechanical properties of longitudinal weld in 6005A aluminum alloy profile extruded by a porthole die," J. Mater. Res. Technol., vol. 28, p.2552–2571, Jan. 2024.

DOI: 10.1016/j.jmrt.2023.12.182

Google Scholar

[12] X. Zhou, S. Tronvoll, W. M. Williams, L. Sandnes, and T. Welo, "Recrystallization Effects on the Formability of Extruded AA6082-T6 Profiles," in Proceedings of 13th International Aluminum Extrusion Technology Seminar, Orlando, Florida: The Aluminum Extruders Council and The Aluminum Association., May 2024.

Google Scholar