Comparison of experimental and simulation results using erichsen cupping test of titanium alloy OT 4–1

Vemula, Ananda Mohan; Reddy, G. Ravi Shankar; Hussain, M. Manzoor

doi:10.1016/j.matpr.2020.09.632

Cited by 2 publications

(1 citation statement)

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“…The formability of the examined AA2024-T3 material was illustrated by the biaxial stress on the sheet during the forming process, as measured by the Erichsen cupping test in accordance with ISO 20482 [29]. Singh et al [30], Vemula et al [31], and Hamada et al [32] conducted experiments and reported on the formability of the analyzed sheets based on their bi-axial tension behavior. Obviously, the schematic of the Erichsen cupping test set up is presented in Figure 4.…”

Section: Erichsen Cupping Testmentioning

confidence: 99%

Investigation of surface hardness and roughness on formability of aluminum alloy sheet AA2024-T3 subjected to the shot peening process by silica shots

et al. 2023

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Shot peening is one type of modified surface treatment that produces a residual compressive stress on the material subsurface and improves surface properties while generating plastic deformation on the surface. This research work aims to improve surface properties, which include the enhanced material formability of aluminum alloy 2024-T3 sheet having 1.2 mm of thickness, by providing residual compressive stress on the surface using the shot peening process, which uses silica particles of 0.1 mm in diameter. First, shot peening was performed using various process parameters: compressed air, distance from nozzle to target, and duration time. Based on the obtained peening sheet, the surface hardness and roughness tests were experimentally performed on the peened surfaces. Additionally, the residual tension created in the sheet after the shot peening is calculated using the X-ray diffraction technique. Consequently, the shot-peened and unpeened sheets were put through hole expansion and Erichsen cupping tests to compare the results of the formability between the shot-peened and unpeened sheets. It was found that peened sheets had a low surface roughness and increased surface hardness, which is better than the unpeened sheet. Moreover, the residual compressive stresses were higher than on the original sheet. Last, the shot peening condition, which changed the surface properties the most, was tested on the hole expansion and Ericshen cupping tests, where the formability results were very significant.

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Section: Erichsen Cupping Testmentioning

confidence: 99%