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<p>In the present work, AA5754 alloys with a thickness of 1.5&#xa0;mm were subjected to electric-assisted forming (EAF) by varying different process parameters like current, pulse width, and pulse period to determine the mechanical properties and formability behaviour. It was observed that in EAF, the mechanical properties like ductility have increased from 23.4% to 56.9%, compared to room temperature. Limiting Dome Height (LDH) tests were performed to plot the Forming Limit Diagram (FLD) at room temperature as well as EAF and found that the formability limits were enhanced during EAF. To study the fracture modes in EAF, scanning electron microscope (SEM) was used and found that in EAF fracture surfaces exhibit reduced dimple size and depth, suggesting that the application of current enhances dislocation mobility. From this study, it is proved that electric-assisted forming is an alternative method to enhance the formability of the aluminium alloys.</p>

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Formability and Failure Analysis of AA5754 During Electric-Assisted Forming

  • 期刊论文

  • 发表日期：

    2026年5月20日

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  • Besatty Chandrasekhar,
  • Kandukuri Srinivas,
  • Marrapu Bhargava

摘要

In the present work, AA5754 alloys with a thickness of 1.5 mm were subjected to electric-assisted forming (EAF) by varying different process parameters like current, pulse width, and pulse period to determine the mechanical properties and formability behaviour. It was observed that in EAF, the mechanical properties like ductility have increased from 23.4% to 56.9%, compared to room temperature. Limiting Dome Height (LDH) tests were performed to plot the Forming Limit Diagram (FLD) at room temperature as well as EAF and found that the formability limits were enhanced during EAF. To study the fracture modes in EAF, scanning electron microscope (SEM) was used and found that in EAF fracture surfaces exhibit reduced dimple size and depth, suggesting that the application of current enhances dislocation mobility. From this study, it is proved that electric-assisted forming is an alternative method to enhance the formability of the aluminium alloys.