Investigation on formability enhancement of 5A06 aluminium sheet by impact hydroforming

Ma, Ying; Xu, Yan; Zhang, Shihong; Banabic, Dorel; El-Aty, Ali Abd; Chen, Dayong; Cheng, Ming; Song, Hong-Wu; Pokrovsky, A. I.; Chen, Guoqing

doi:10.1016/j.cirp.2018.04.024

Cited by 38 publications

(7 citation statements)

References 11 publications

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“…These constitutive models include physically based constitutive models, phenomenological constitutive models, and ANN modelling [12]. Among these constitutive models (notably phenomenological models), the Johnson-Cook model (J-C) is often used for different metallic materials with different forming conditions and is available in most commercial FE codes [40], [41].…”

Section: Constitutive Modellingmentioning

confidence: 99%

“…According to the above discussion, the dynamic deformation behavior of AA2060-T8 under high strain rate conditions has not yet been investigated. High deformation rate or high speed forming is considered as a significant method to improve the formability of lightweight metallic materials which have poor formability at room temperature [12]. This phenomenon is very interesting and important in sheet metal forming, thus, it is valuable to explore the mechanical response, fracture mechanism, and flow behavior of AA2060-T8 sheets under high deformation rate.…”

Section: Introductionmentioning

confidence: 99%

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Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy

El-Aty

Zhang

et al. 2019

Journal of Advanced Research

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Section: Constitutive Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy

El-Aty

Zhang

et al. 2019

Journal of Advanced Research

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“…For example, high-speed forming methods have been successfully implemented in hydroforming in recent years. An example of these technologies is impact forming which has been employed for tube hydroforming (Beerwald et al, 2010;Ma et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of dynamic tube hydroforming to examine the prediction on it by genetic programming

Mohseni

Rezapour

Rad

et al. 2023

IJSI

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PurposeThe process of hydroforming is defined as the formation of parts into the internal mold design using internal pressure. This process can extensively reduce parts and secondary operations, and adoption to the loading path is one of its most essential points. The purpose of this paper is to address these issues.Design/methodology/approachA dynamic loading path was taken into account in the current study, and a drop hammer was employed for this purpose, decreasing the time and requiring less number of systems.FindingsOne of the main observations of this research is that selecting side punches with a smaller central hole radius is proportional to the kinetic energy and the amount of fluid. Moreover, it can be effective in achieving the optimal loading path.Originality/valueIn addition to experiments for numerical analyses, the finite element simulation model was provided via Abaqus software in which the Eulerian–Lagrangian coupling method was utilized for evaluating the tube forming process through repeating the fluid flow formation because of the effect. Moreover, the genetic programming model was efficient for determining the most suitable input parameters regarding prediction for the minimum thickness which examined the efficiency of the process and presented a mathematical relationship.

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“…Yang [12][13][14] studied the deformation law of tube during IHF and observed the actual effect of improving the formability of tube. In recent years, Zhang [15] et al first proposed the IHF technology to realize sheet forming only under the impact hydraulic loading. Based on the demonstration and application of different brands of aluminum alloy by Ma, Chen and El-Aty [16][17] et al , it is proved that IHF technology can significantly improve the formability and precision quality of aluminum alloy.…”

Section: Introductionmentioning

confidence: 99%

Effect of blank size on impact hydroforming of 2195 Al-Li alloy half-tube part with curvature

Zhu

Chen

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Aluminum-Lithium (Al-Li) alloy has excellent properties such as low density, high elastic modulus and high specific strength, and it is considered as the most ideal structural material in aerospace. However, due to the low plasticity of Al-Li alloy at room temperature, it is easy to crack during cold forming, so its application and development have been limited. In order to explore the possibility of improving the plasticity of 2195 Al-Li alloy at room temperature, a half-tube part with curvature and deep cavity structure was formed by using impact hydroforming (IHF) technology. In this paper, the process route of half-tube part was optimized and four sizes of blank were designed. Through finite element numerical simulation and analysis, it was found that the F area was prone to wrinkle defects when there was less material at the inner arc position, and the most serious thinning occurred in the design margin area. After analysis and comparison, the blank size with drawing ratio of 2.22 was finally selected. Based on the verification experiment, it was found that due to the material properties of Al-Li alloy and the characteristics of IHF, one-step forming was difficult, and the forming of half-tube part was prone to insufficient drawing depth or large area fracture; Although the part obtained by two-step forming also had cracks, the overall forming quality of the part would not be affected because they were located in the design margin area to be removed later. In addition, it was observed that the surface quality of the part removed the design margin area were free of wrinkles and cracks, which meets the objective design requirements.

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Investigation on formability enhancement of 5A06 aluminium sheet by impact hydroforming

Cited by 38 publications

References 11 publications

Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy

Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy

Numerical and experimental investigation of dynamic tube hydroforming to examine the prediction on it by genetic programming

Effect of blank size on impact hydroforming of 2195 Al-Li alloy half-tube part with curvature

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