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Upper bound loads for extrusion through circular dies

โœ Scribed by Johnson, W.


Book ID
105729210
Publisher
Springer
Year
1958
Tongue
English
Weight
696 KB
Volume
7
Category
Article
ISSN
0003-6994

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Metal forming by extrusion is one of the widely used metal forming processes. Conventionally the extrusion is carried out using the shear faced dies. In these dies the metal is forced to go through abrupt change in cross-section. Hence, they suffer from the practical problems such as formation of de

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In the present work, for the first time, an upper-bound approach is used to analyze the equal channel angular extrusion with circular cross-sections. Based on this model the power dissipated on all frictional and velocity discontinuity surfaces are determined and the total power optimized analytical