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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 2    No. 1    February 1992

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THE EFFECT OF FRICTION AT SIZING SURFACE ON DRAWING FORCE
Chen Jiamin1 ,Bao Junfeng2 ,Chang Fumian2

1.Northeast University of Technology Shenyang 110006, China
2. Shengyang Non—ferrous Metal Works Shengyang 110102, China

Abstract:Regarding the sizing surface zone as a quasi-plasticity one and using yielding criterion, a new drawing force calculating formula in which the sizing surface friction was taken into account is deducted. The calculated and experimental results show that for rod drawing and tube sinking, it is permissible to neglect the effect of the friction at the sizing surface, but for tube drawing with a stationary mandrel, especially for thin-wall tube drawing this friction should not be neglected.

 

Key words: sizing surface, Friction, effect, Drawing force

ISSN 1672-7029
CN 43-1423/U

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