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
Upper bound loads for extrusion through circular dies
โ 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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๐ SIMILAR VOLUMES
The study is concerned with an analysis of forward extrusion of composite rods through curved dies. A kinematically admissible velocity field is derived by assuming proper streamlines and applying the flow function concept to each material region of plastic deformation. Two kinds of flow functions a
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