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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 4    December 1995

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A SOLUTION OF SHAPE EXTRUSION OR DRAWING BASED ON DEFORMATION THEORY
Yuan Xi

Department of Materials Science and Engineering; Central South University of Technology; Changsha 410083

Abstract:A new method based on deformation theory for analysing shape extrusion or drawing was described.The processes of the extrusion or drawing of regular polygonal or rectangular sections from cylindrical billets were discussed.The calculated results have been compared with known data obtained from upper bound method and were found to be in good agreement.

 

Key words: shape extrusion or drawing deformation theory upper bound approximation

ISSN 1672-7029
CN 43-1423/U

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