Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming

Dou, Shasha; Liu, Zhuang; Li, Zhijun; Shi, Haojie; Zhou, Kang; Xia, Jiansheng

doi:10.3390/met15020117

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Open AccessArticle

Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming

by

Shasha Dou

,

Zhuang Liu

,

Zhijun Li

,

Haojie Shi

,

Kang Zhou

and

Jiansheng Xia

^*

College of Mechanical Engineering, Yancheng Institute of Technology, Yancheng 224051, China

^*

Author to whom correspondence should be addressed.

Metals 2025, 15(2), 117; https://doi.org/10.3390/met15020117

Submission received: 23 December 2024 / Revised: 16 January 2025 / Accepted: 21 January 2025 / Published: 25 January 2025

(This article belongs to the Special Issue Advanced Plastic Forming Processes: Theory, Experiments and Numerical Simulations)

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Abstract

The coupling effects of electrical pulse, temperature, strain rate, and strain on the flow behavior and plasticity of 7075-T6 aluminum alloy were investigated and characterized. The isothermal tensile test and electrically assisted isothermal tensile test were performed at the same temperature, and the typical models were further embedded in ABAQUS for numerical simulation to illustrate the electroplastic effect. The results showed that electrical pulses reduced deformation resistance but greatly increased elongation. Compared with the traditional Johnson–Cook model, the proposed modified electroplasticity constitutive equations have a certain improvement in calibration accuracy for a highly nonlinear and thermoelectric coupling dynamic behavior. Moreover, combined with the electrically assisted three-point bending experiment, it was found that the springback angle decreases with the increase in current density. This is very close to the experimental result, further verifying the effectiveness of the thermoelectric coupling constitutive equation.

Keywords: 7075-T6 aluminum alloy; material characterization; electroplastic effects; Johnson–Cook constitutive equation; uniaxial tensile

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MDPI and ACS Style

Dou, S.; Liu, Z.; Li, Z.; Shi, H.; Zhou, K.; Xia, J. Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming. Metals 2025, 15, 117. https://doi.org/10.3390/met15020117

AMA Style

Dou S, Liu Z, Li Z, Shi H, Zhou K, Xia J. Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming. Metals. 2025; 15(2):117. https://doi.org/10.3390/met15020117

Chicago/Turabian Style

Dou, Shasha, Zhuang Liu, Zhijun Li, Haojie Shi, Kang Zhou, and Jiansheng Xia. 2025. "Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming" Metals 15, no. 2: 117. https://doi.org/10.3390/met15020117

APA Style

Dou, S., Liu, Z., Li, Z., Shi, H., Zhou, K., & Xia, J. (2025). Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming. Metals, 15(2), 117. https://doi.org/10.3390/met15020117

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Mechanical Properties of 7075-T6 Aluminum Alloy in Electrically Assisted Forming

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