Abstract
Punching is an important process of the production for ultra-high-strength steel automobile components. By selecting the appropriate punching parameters, the punching quality can be effectively improved and the punching force can be reduced. In this study, several typical fracture damage models applicable to the punching process of high strength steel were compared, where the critical damage values were calculated through an iterative predictor–corrector approach. Meanwhile, the effects of punching parameters on maximum punching force (MPF) and punched face quality for hot stamped ultra-high strength steel Usibor1500P were investigated experimentally. The results show that the Oyane damage model is the most suitable one in simulating the punching process of Usibor1500P, which can better predict the punched profile features and the variation of punching force within one stroke. The increase in die clearance decreases the MPF, while the plate thickness, punch diameter and punch corner radius increase the MPF. The change of the punch corner radius has the most significant effect on the improvement of the punched face quality.
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Funding
This work was supported by the National Key Research and Development Program of China (No. 2022YFE0196600), the National Natural Science Foundation of China (No. 52175349), and the Natural Science Foundation of Shanghai (No. 21ZR1429600).
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Chendong Yang: methodology, formal analysis, writing—original draft. Jincan Wei: methodology, investigation, writing—reviewing and editing. Zhen Chen: data curation, resources. Shaofei Qu: project administration. Xianhong Han: resources, writing—reviewing and editing, supervision, funding acquisition. All authors have read and agreed to the published version of the manuscript.
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Yang, C., Wei, J., Chen, Z. et al. Study of fracture damage criteria and influence of process parameters on punching of hot stamped ultra-high strength steel. Int J Adv Manuf Technol 128, 1493–1504 (2023). https://doi.org/10.1007/s00170-023-11980-3
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DOI: https://doi.org/10.1007/s00170-023-11980-3