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<p>Incremental forming is emerging as a promising approach for fabricating customized products and intricate shaped lightweight components for aero-structural applications. In the present work, single point incremental forming (SPIF) test was carried out to characterize the forming behavior of an Al-Li alloy AA8090. A benchmark component, namely variable wall angle conical geometry was fabricated. A finite element (FE) model based on Hill48 plasticity theory was developed to analyze the forming behavior. The FE model was validated by comparing the thickness distribution with experimental data. To get further insights into the forming behavior, the FE predicted strains was used to provide input to the visco-plastic self-consistent (VPSC) model for predicting the texture evolution during SPIF process. The role of orientation of material’s orthotropy axes relative to the locally imposed velocity gradient on texture evolution was studied by predicting texture at different regions of the SPIF fabricated component. The VPSC simulation demonstrated that the evolution of different strain components influences the development of texture during SPIF process.</p>

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Prediction of Forming Behavior and Texture Evolution during Single Point Incremental Forming of AA8090 Sheet

  • 期刊论文

  • 发表日期：

    2026年5月27日

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  • Rahul Rakshit,
  • Bhupesh Singh Katiyar,
  • Sushanta Kumar Panda,
  • Sumantra Mandal

摘要

Incremental forming is emerging as a promising approach for fabricating customized products and intricate shaped lightweight components for aero-structural applications. In the present work, single point incremental forming (SPIF) test was carried out to characterize the forming behavior of an Al-Li alloy AA8090. A benchmark component, namely variable wall angle conical geometry was fabricated. A finite element (FE) model based on Hill48 plasticity theory was developed to analyze the forming behavior. The FE model was validated by comparing the thickness distribution with experimental data. To get further insights into the forming behavior, the FE predicted strains was used to provide input to the visco-plastic self-consistent (VPSC) model for predicting the texture evolution during SPIF process. The role of orientation of material’s orthotropy axes relative to the locally imposed velocity gradient on texture evolution was studied by predicting texture at different regions of the SPIF fabricated component. The VPSC simulation demonstrated that the evolution of different strain components influences the development of texture during SPIF process.