Abstract
Flow stress curves of USIBOR1500 high-strength steel at high temperatures were obtained by tensile test. A constitutive model of high-temperature deformation of the material was established at 300–600 °C and 500–800 °C for one- and two-stage hot-forming processes, respectively. On the basis of the established constitutive equation, the one- and two-stage hot-forming methods were simulated, and the best process was determined. Results showed that the parts with simple shape and structure adopted the one-stage hot stamping technology, whereas the complicated parts adopted the two-stage hot stamping technology. The process parameters of the one-stage hot stamping technology are as follows: heating of the sheet material to more than 850 °C through an electric furnace, initial die temperature of 100 °C, stamping speed of 50 mm/s, pressing force of 1.28 kN, and punching pressure of 19.8 kN.
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Zhang, P., Zhu, L., Luo, S. et al. Hot stamping forming and finite element simulation of USIBOR1500 high-strength steel. Int J Adv Manuf Technol 103, 3187–3197 (2019). https://doi.org/10.1007/s00170-019-03727-w
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DOI: https://doi.org/10.1007/s00170-019-03727-w