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<p>Enhanced formability is a key advantage of single point incremental forming (SPIF), primarily due to localized deformation and strain hardening, which improve mechanical properties. However, SPIF faces challenges under biaxial deformation due to non-uniform stress distribution. This study explores how preheating-induced textures enhance formability by stabilizing deformation. By systematically varying preheating temperatures, targeted recrystallization promotes the formation of Cube and R-Cube<sub>ND</sub> texture components, which alter slip systems and deformation behavior. Electron backscatter diffraction (EBSD) and x-ray diffraction are used to characterize grain structures, boundary statistics, and texture evolution from the as-rolled to the preheated and formed states. Lower preheating temperatures (230&#xa0;°C) favor Cube texture stabilization, while higher temperatures (330-500&#xa0;°C) amplify Cube and R-CubeND components, reducing less favorable orientations like S, copper, and Goss. The reinforced Cube texture benefits from substructures that restrict deformation energy accumulation, leading to a stable texture at elevated temperatures. This texture evolution significantly impacts SPIF strain behavior, with increased presence of deformation-stabilizing Brass and P textures and improved isotropy under biaxial strain. The study demonstrates that controlled preheating enables texture manipulation, optimizing SPIF outcomes and enhancing resistance to localized failure, thus paving the way for texture-driven forming strategies in lightweight alloy applications.</p>

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Investigating the Role of Reinforced Cube Texture in Enhanced Formability and Subsequent Deformation Texture of Incrementally Formed AA 1050 Sheets

  • 期刊论文

  • 发表日期：

    2025年10月13日

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  • Parnika Shrivastava

摘要

Enhanced formability is a key advantage of single point incremental forming (SPIF), primarily due to localized deformation and strain hardening, which improve mechanical properties. However, SPIF faces challenges under biaxial deformation due to non-uniform stress distribution. This study explores how preheating-induced textures enhance formability by stabilizing deformation. By systematically varying preheating temperatures, targeted recrystallization promotes the formation of Cube and R-CubeND texture components, which alter slip systems and deformation behavior. Electron backscatter diffraction (EBSD) and x-ray diffraction are used to characterize grain structures, boundary statistics, and texture evolution from the as-rolled to the preheated and formed states. Lower preheating temperatures (230 °C) favor Cube texture stabilization, while higher temperatures (330-500 °C) amplify Cube and R-CubeND components, reducing less favorable orientations like S, copper, and Goss. The reinforced Cube texture benefits from substructures that restrict deformation energy accumulation, leading to a stable texture at elevated temperatures. This texture evolution significantly impacts SPIF strain behavior, with increased presence of deformation-stabilizing Brass and P textures and improved isotropy under biaxial strain. The study demonstrates that controlled preheating enables texture manipulation, optimizing SPIF outcomes and enhancing resistance to localized failure, thus paving the way for texture-driven forming strategies in lightweight alloy applications.