Abstract
Considering the poor formability of aluminum alloys at room temperature, this study proposes a stamping technique assisted by arc pretreatment that locally modifies the material properties. V-shape bending tests are conducted on the arc-treated specimens. The formability (bendability in particular) of 6061-T6 aluminum alloy is significantly improved by arc pretreatment and the springback is reduced as well. The reasons for formability improvement and springback reduction are analyzed through the microstructure, mechanical property, and fracture morphology of the heat-affected zone. The hardness at different locations within the heat-affected zone before and after bending is also tested. Finally, the advantages of arc pretreatment over other traditional forming processes at elevated temperatures are explained.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Lung YF, Lin MC, Lin HC, Lin KM (2011) The stamping behavior of an early-aged 6061 aluminum alloy. Mater Design 32:4369–4375
Li J, Xu G, Yu H, Chen G, Li HJ, Lu C, Guo JY (2015) Improvement of AA5052 sheet properties by electromagnetic twin-roll casting. Int J Adv Manuf Technol 85:1007–1017
Toros S, Ozturk F, Kacar I (2008) Review of warm forming of aluminum–magnesium alloys. J Mater Process Technol 207:1–12
Hhojjati M, Zoorabadi M, Jhosseinipour S (2008) Optimization of superplastic hydroforming process of Aluminium alloy 5083. J Mater Process Technol 205:482–488
Hcui X, Huamo J, Jackli J (2014) Electromagnetic incremental forming (EMIF): a novel aluminum alloy sheet and tube forming technology. J Mater Process Technol 214:409–427
Ermanokman O, Ozmen M, Huwiler H (2007) Free forming of locally heated specimens. Int J Mach Tool Manu 47:1197–1205
Mohamed MS, Foster AD, Linm J (2012) Investigation of deformation and failure features in hot stamping of AA6082: experimentation and modelling. Int J Mach Tool Manu 53:27–38
Karbasian H, Tekkaya AE (2010) A review on hot stamping. J Mater Process Technol 210:2103–2118
Liu L, Chen M, Li C, Yang L (2014) A new superimposed double-arc welding method with one arc submerged in the weld pool. Int J Adv Manuf Technol 75:331–337
Bardel D, Nelias D, Robin V, Pirling T, Boulnat X, Perez M (2016) Residual stresses induced by electron beam welding in a 6061aluminium alloy. J Mater Process Technol 235:1–12
Liu L, Qi X, Wu Z (2010) Microstructural characteristics of lap joint between magnesium alloy and mild steel with and without the addition of Sn element. Mater Lett 64:89–92
Casalino G, Mortello M, Leo P (2014) Study on arc and laser powers in the hybrid welding of AA5754 Al-alloy. Mater Design 61:191–198
Jonckheere C, Meester B, Denquin A (2013) Temperature and hardening precipitation evolution in dissimilar friction stir welds between 6061-T6 and 2014-T6 aluminum alloys. J Mater Process Technol 213:826–837
Ambriz RR, Chicot D, Benseddiq N, Mesmacque G, Torre SD (2011) Local mechanical properties of the 6061-T6 aluminum weld using micro-traction and instrumented indentation. European Journal of Mechanics A/Solids 30:307–315
Mao Y, Ke L, Liu F, Huang C, Chen Y, Liu Q (2015) Effect of welding parameters on microstructure and mechanical properties of friction stir welded joints of 2060 aluminum lithium alloy. Int J Adv Manuf Technol 81:1419–1431
Cole EG, Fehrenbacher A, Duffie NA, Zinn MR, Pfefferkorn FE, Ferrier NJ (2013) Weld temperature effects during friction stir welding of dissimilar aluminum alloys 6061-t6 and 7075-t6. Int J Adv Manuf Technol 71:643–652
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ren, D., Zhao, D., Fan, R. et al. Bending of sheet aluminum alloy assisted by arc pretreatment. Int J Adv Manuf Technol 92, 1291–1298 (2017). https://doi.org/10.1007/s00170-017-0190-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-017-0190-8