Research on Cryogenic Deformation Behavior and Deep Drawing Process for Complex Thin-walled Parts of 2060 Aluminum-Lithium Alloy

doi:10.3901/JME.2025.14.020

Abstract

Abstract: A cryogenic forming method for aluminum-lithium alloy thin-walled components is investigated to address the issues of cracking tendency and property degradation during complex-shaped thin-wall forming. When the forming temperature is reduced from 25°C to –196°C, the plasticity of 2060 aluminum-lithium alloy is enhanced by over 55%. Microstructural observations reveal that cryogenic forming suppresses dynamic recovery of dislocations and enhances work hardening capability, enabling homogeneous plastic deformation. Compared with annealed alloys, solution-quenched alloys demonstrate superior cryogenic plasticity, which is attributed to the dissolution of second-phase particles into aluminum matrix during solution treatment. This phase dissolution mechanism effectively inhibits localized deformation induced by second-phase particles, promotes deformation band formation, and enhances work hardening capability during later deformation stages. A 2060 alloy aircraft door basin-shaped sample with maximum forming depth of 98 mm is successfully formed through cryogenic deep drawing in a single forming step. Components fabricated from solution-quenched alloy through cryogenic forming exhibit excellent strength-ductility synergy and fatigue performance after aging treatment. The findings provide a new approach for integrated forming-property manufacturing of complex thin-walled aviation aluminum-lithium alloy components.

Key words: aluminum-lithium alloy, cryogenic forming, work hardening capability, deep drawing, strength-ductility

CLC Number:

TG156

DONG Fei, YI Youping, HUANG Shiquan, HE Hailin. Research on Cryogenic Deformation Behavior and Deep Drawing Process for Complex Thin-walled Parts of 2060 Aluminum-Lithium Alloy[J]. Journal of Mechanical Engineering, 2025, 61(14): 20-28.

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http://www.cjmenet.com.cn/EN/Y2025/V61/I14/20

References

[1] DURSUN T，SOUTIS C. Recent developments in advanced aircraft aluminium alloys[J]. Materials & Design (1980-2015)，2014，56:862-871.
[2] ELATY A A，XU Y，GUO X，et al. Strengthening mechanisms，deformation behavior，and anisotropic mechanical properties of Al-Li alloys:A review[J]. Journal of Advanced Research，2018，10:49-67.
[3] HAJJIOUI E A，BOUCHAÂLA K，FAQIR M，et al. A review of manufacturing processes，mechanical properties and precipitations for aluminum lithium alloys used in aeronautic applications[J]. Heliyon，2023，9(3):e12565.
[4] 林忠钦，黄庆学，苑世剑，等. 中国塑性成形技术和装备30年的重大突破与进展[J]. 塑性工程学报，2024，31(4):2-45. LIN Zhongqin，HUANG Qingxue，YUAN Shijian，et al. Major breakthrough and progress in metal forming technology and equipment of China in the last 30 years[J]. Journal of Plasticity Engineering，2024，31(4):2-45.
[5] 常蓓，刘波，倪兴屹，等. 大型薄壁翼尖深腔整流蒙皮拉深成形技术研究[J]. 模具工业，2022，48(4):21-26. CHANG Bei，LIU Bo，NI Xingyi，et al. Study on drawing technology of deep cavity rectifier skin in large thin-walled wingtip[J]. Die & Mould Industry，2022，48(4):21-26.
[6] SINGH C，AGNIHOTRI G. Study of deep drawing process parameters:A review[J]. International Journal of Scientific and Research Publications，2015，5(2):1-15.
[7] HU Z，FAN C，ZHENG D，et al. Microstructure evolution of Al-Cu-Mg alloy during rapid cold punching and recrystallization annealing[J]. Transactions of Nonferrous Metals Society of China，2019，29(9):1816-1823.
[8] GUMBMANN E，GEUSER F D，SIGLI C，et al. Influence of Mg，Ag and Zn minor solute additions on the precipitation kinetics and strengthening of an Al-Cu-Li alloy[J]. Acta Materialia，2017，133:172-185.
[9] 谢冰鑫，黄亮，徐佳辉，等. 2195铝锂合金时效析出行为与强化机理[J]. 中国有色金属学报，2022，32(8):2160-2172. XIE Bingxin，HUANG Liang，XU Jiahui，et al. Aging precipitation behavior and strengthening mechanism of 2195 Al-Li alloy[J]. The Chinese Journal of Nonferrous Metals，2022，32(8):2160-2172.
[10] 王硕，张弛，王俊升. 铝锂合金纳米析出相结构与性能综述[J]. 航空制造技术，2021，64(9):68-76，92. WANG Shuo，ZHANG Chi，WANG Junsheng. Structures and properties of nano-precipitates in Al-Li alloys[J]. Aeronautical Manufacturing Technology，2021，64(9):68-76，92.
[11] 郑皓，杨健，寇飞行. 铝锂合金薄板在国内航空领域的工程化应用与展望[J]. 中国材料进展，2025，44(2):193-198. ZHENG Hao，YANG Jian，KOU Feixing. Engineering application and prospect of Aluminum-lithium alloy sheet in domestic aviation field[J]. Materials China，2025，44(2):193-198.
[12] 李国爱，王亮，郝敏，等. 2060铝锂合金薄板组织特征及疲劳损伤行为[J]. 西北工业大学学报，2020，38(2):384-391. LI Guoai，WANG Liang，HAO Min，et al. Microstructure characteristic and fatigue damage behaviors of 2060 Al-Li alloy thin plate[J]. Journal of Northwestern Polytechnical University，2020，38(2):384-391.
[13] WANG P，YE L，DENG Y，et al. Enhanced fatigue crack propagation resistance of a new Al-Cu-Li alloy via different aging processes[J]. Journal of Materials Research and Technology，2024，30:5368-5380.
[14] LU D，NING H，DENG S，et al. Influence of microstructure on fatigue crack propagation behaviors of Al-xCu-1.5 Li-X alloys[J]. International Journal of Fatigue，2023，167:107363.
[15] XIA L，LI Y，HUANG M，et al. Enhanced fatigue crack propagation resistance of Al-4.1 Cu-1.1 Li alloy by interrupted aging[J]. Journal of Materials Science，2022，57(11):6372-6384.
[16] 刘伟，程旺军，郝永刚，等. 铝合金超低温双增效应与成形性能[J]. 中国有色金属学报，2022，32(7):1845-1854. LIU Wei，CHENG Wangjun，HAO Yonggang，et al. Dual enhancement effect and formability of aluminum alloys at cryogenic temperatures[J]. The Chinese Journal of Nonferrous Metals，2022，32(7):1845-1854.
[17] ZHOU P，SONG Y，HUA L，et al. Mechanical behavior and deformation mechanism of 7075 aluminum alloy under solution induced dynamic strain aging[J]. Materials Science and Engineering:A，2019，759:498-505.
[18] ANJABIN N，TAHERI A，KIM H. Simulation and experimental analyses of dynamic strain aging of a supersaturated age hardenable aluminum alloy[J]. Materials Science and Engineering:A，2013，585:165-173.
[19] PICU R C，VINCZE G，OZTURK F，et al. Strain rate sensitivity of the commercial aluminum alloy AA5182-O[J]. Materials Science and Engineering:A，2005，390(1-2):334-343.
[20] CHEN H，CHEN Z，LIU J，et al. Constitutive modeling of flow stress and work hardening behavior while considering dynamic strain aging[J]. Materialia，2021，18:101137.
[21] DE K N E，PEERLINGS R H J，GEERS M G D. An analysis of sheet necking under combined stretching and bending[J]. International Journal of Material Forming，2009，2:845-848.
[22] DONG F，HUANG S，YI Y，et al. Effect of increased stretching deformation at cryogenic temperature on the precipitation behavior and mechanical properties of 2060 Al-Li alloy[J]. Materials Science and Engineering:A，2022，834:142585.