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
An analysis of the extrusion welding process
β Scribed by P. Michel
- Publisher
- Society for Plastic Engineers
- Year
- 1989
- Tongue
- English
- Weight
- 452 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0032-3888
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π SIMILAR VOLUMES
Transverse welds occur in the billet-to-billet extrusion process, which is often used in modern aluminium extrusion plants for the purpose of continuous production. The transverse weld introduces a discontinuity at the weld interface in the extruded product and in many structural applications. This
In this work the finite-element simulation of various copper extrusion processes was studied. Firstly the metal flow in axisymmetrlc extrusion was studied. Both flat-faced and converging dies were used and the metal flow through them was analyzed. The extrusion was assumed to be isothermal. TWo diff