In this paper a new upper-bound approach is used to analyze the tube extrusion process. A kinematically admissible velocity field is developed to evaluate the internal power and the power dissipated on frictional and velocity discontinuity surfaces. The total power is optimized with respect to the
โฆ LIBER โฆ
The upper-bound analysis of cold extrusion process for box-shaped products
โ Scribed by Hong Yan; Zhongming Lou
- Book ID
- 108215338
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 183 KB
- Volume
- 132
- Category
- Article
- ISSN
- 0921-5107
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A new kinematically-admissible velocity field is proposed to determine the final-stage extrusion load and the average extruded height in the backward extrusion of internally non-axisymmetric tubes from round billets. The proposed velocity field is applied to the backward extrusion of internally troc