Abstract
In this work, thermal deep drawing and thermoelectric coupling drawing tests were performed on an annealed ZK60 magnesium alloy sheet to investigate the effect of the pulse current on the formability of the ZK60 magnesium alloy during the drawing process. The effects of thermal deep drawing and the thermoelectric coupling on the forming of drawn parts were studied, and the changes of the thinning rate and hardness were obtained. The results showed that the using of pulse current improved the formability of the ZK60 magnesium alloy and increased the ultimate depth of drawing. The hardness value of the drawn part showed an overall increasing trend, followed by thermoelectric coupling deep drawing, which was significantly higher than the sheet after annealing without deep drawing. The deep-drawn parts had different grain sizes in different places, and dynamic recrystallization occurred to varying degrees in each region. Furthermore, the degree of dynamic recrystallization in the punch fillet and cylinder wall was significantly higher than in other areas.
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Funding
The project is supported by the Natural Science Foundation of Hebei Province, China [Grant Number E2020203034], Shanghai Engineering Research Center of Hot Manufacturing, Shanghai Dianji University [Grant Number 18DZ2253400] and Innovation Ability Promotion Program of Hbei [22567609H].
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Le Zhan: experiment, methodology, writing—original draft preparation. Ruixin Li: investigation, writing—original draft preparation. Junzhi Wang: data curation, validation, writing—reviewing and editing. Xin Xue: experiment, data curation, writing—reviewing and editing. Yimin Wang: data curation, reviewing and editing. Zhiqing Lv: validation, writing, resources, supervision. All authors read and approved the final manuscript.
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Zhan, L., Li, R., Wang, J. et al. Thermoelectric coupling deep drawing process of ZK60 magnesium alloys. Int J Adv Manuf Technol 126, 3005–3014 (2023). https://doi.org/10.1007/s00170-023-11300-9
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DOI: https://doi.org/10.1007/s00170-023-11300-9