This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Recent Developments in Press Formability of Aluminum Alloy Sheets for Automotive Panels
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1993 by SAE International in United States
Annotation ability available
Aluminum alloy sheets are used for automotive body-panels, but their small Young's modulus results in inferior shape-fixability than conventionally-applied steel sheets with similar strengths. Smaller radius of curvature, indicating better shape-fixability, is found at the center of a panel press-formed with higher blank holder force (BHF). Higher force can be applied for press-forming of alloy sheets with larger strain-hardening exponent (n value) induced by an increased addition of Mg. Recently-developed 5000 series alloy sheets containing 5.5 pct Mg and 0.3 pct Cu have an elongation over 33 pct at an ultimate tensile strength of 270 MPa and can be press-formed with better shape-fixability.
CitationSakuma, Y., Usuda, M., Komatsubara, T., and Matsuo, M., "Recent Developments in Press Formability of Aluminum Alloy Sheets for Automotive Panels," SAE Technical Paper 930705, 1993, https://doi.org/10.4271/930705.
- KomatsubaraT. and Matsuo M.: SAE paper 890712, 1989.
- AbeY., YoshidaM., NoguchiO., MatsuoM., and Komatsubara T.: Journal of the Japan Society for Technology of Plasticity, vol. 33, 1992, pp.365-372.
- Aluminum Vol. I - Properties, Physical Metallurgy, and Phase Diagrams, ed. by Horn R.Van, 1967, ASM, pp.196.
- KatayamaT., UsudaM., AbeY., YoshidaM., and NoguchiO.: Proc. of the 43rd Jpn Joint Conf. for the Technol. of Plasticity, 1992, pp.729-732.