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Warm laser shock micro-heading forming (T2 copper): numerical simulation and experimental research

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Abstract

Based on the advantages of laser shock forming, such as high-speed dynamic loading, good filling ability of die cavity, and improving material formability along with its other advantages of warm forming to improve forming discreteness and further develop formability, a warm laser shock micro-heading forming (WLSMHF) method was investigated, and an experimental system was established. Combining ALE method in ABAQUS with experiment, the feasibility was studied with T2 copper. The propagation of stress wave, deformation process, and material flow law was studied. The influence of laser energy, temperature, and grain size on the deformation of upsetting head was studied. The influence of forming temperature and grain size on forming discreteness was analyzed. Results show that the phenomenon of the anti-Taylor anvil impact test first appears in the whole rod. When the inside of the die is filled with material, the deformation of the material outside the die is similar to that of micro-upsetting. The upper end of the upsetting head is slightly larger than the lower end because of the propagation of stress wave, inertia effect, and the restraint of the die to the material. The flow speed of the metal material in the die is fast, the die is filled well, and the filling property of the die is good. The deformation of upsetting head increases with the laser energy and temperature, which improves the formability of the material. The deformation of the upsetting head increases with the grain size, and the effect of grain size on forming can be reduced by increasing the forming temperature simultaneously. The increase in the forming temperature and decrease in the grain size can improve the discreteness of the forming size and forming accuracy, respectively.

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Funding

The work reported in this paper was supported by the National Natural Science Foundation of China (No.52075226).

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Authors and Affiliations

  1. School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China

    Qifan Gong, Xiao Wang, Tao Zhang, Xin Hou, Zongbao Shen & Huixia Liu

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  1. Qifan Gong
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  2. Xiao Wang
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  3. Tao Zhang
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  4. Xin Hou
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  5. Zongbao Shen
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  6. Huixia Liu
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Qifan Gong wrote the first draft of the paper. All authors revised and approved the final version of the manuscript.

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Correspondence to Xiao Wang.

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The original online version of this article was revised: Figure 6 is incorrect.

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Gong, Q., Wang, X., Zhang, T. et al. Warm laser shock micro-heading forming (T2 copper): numerical simulation and experimental research. Int J Adv Manuf Technol 119, 1491–1511 (2022). https://doi.org/10.1007/s00170-021-08334-2

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