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
โฆ LIBER โฆ
An upper-bound analysis of the backward extrusion of internally elliptic-shaped tubes from round billets
โ Scribed by W.B. Bae; D.Y. Yang
- Book ID
- 108027232
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 667 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0924-0136
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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