Transactions of Materials and Heat Treatment

Title：Study of limit drawing coefficient m_k of cup and cup with flange

Authors： He Ping Wang Wei Wan Liang-hui(School of Aviapion and Astronavigation Engineering Shenyang Institute of Aeronautical Engineering Shengyang Liaoning 110034 China)

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KeyWords： deep-drawing limiting drawing rate a cup a cup with flange

ClassificationCode：TG386.32

year,vol(issue):pagenumber：2005,30(6):21-23

Abstract：

Taking the consideration of the effect of material hardening,this paper deduces the approximately calculating formula of the limit drawing coefficient for a cup and a cup with flange during the first drawing process through the theoretical analysis of the stress and strain in the distortion zone.The calculated result by the deduced formula is in good agreement with experiment results of varied materials.In the real drawing process,the limit drawing coefficient during the first drawing process can be calculated by the formula.

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Reference：

[1]胡世光.板料冷压成形原理[M].北京:国防工业出版社,1989.
[2]王孝培.冲压手册(第二版).北京:机械工业出版社,1990.
[3]翟平.飞机钣金成形原理与工艺.西安:西北工业大学出版社,1995.

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