Abstract
Two laser-induced shock wave pressures, 4.5 and 6.5 GPa, were applied to punch LC4CS aluminum sheet respectively, and the influence of different pressures on fracture behaviors was investigated. The code ANSYS/LS-DYNA, dynamic finite element software, was employed to investigate the sheet fracture behaviors during the punching process. The experimental results display that the punching quality manufactured by higher peak pressure of shock wave is better than that by lower one. The finite element method visualizes the punching process, including sheet deformation, cracks growth, and plug flying away. The computational analysis results reveal that the time to punch the sheet with higher peak pressure of shock wave is shorter than that with lower one, and the edge of punched hole resulted from the higher peak pressure is smoother than that from the lower one, which are consistent well with the experimental results.
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Funding
The authors greatly appreciate the support from the National Natural Science Foundation of China (Grant nos. 51675002, 51175002), the Natural Science Foundation of Anhui province (Grant no. 1708085ME110), Huazhong University of Science and Technology (Grant no. P2017-007), and the Open Foundation of Zhejiang Provincial Top Key Academic Discipline of Mechanical Engineering (Grant no. ZSTUME02A05).
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Li, M., Zhang, X., Li, S. et al. Effect of the pressure on fracture behaviors of metal sheet punched by laser-induced shock wave. Int J Adv Manuf Technol 102, 497–505 (2019). https://doi.org/10.1007/s00170-018-3197-x
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DOI: https://doi.org/10.1007/s00170-018-3197-x