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Abstract：
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Blank holder force (BHF) is one of important parameters in sheet metal forming process. On basis of the sketch of main use and significance of BHF in production, research actuality and existent problems of BHF tchnology is summarized from aspects of loading model, theoretical model, experiments, drawbead, artificial intelligence at home and abroad. The future research work is also discussed.
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Funds：
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上海市科学技术发展基金
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AuthorIntro：
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Reference：
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