A method for selecting admissible velocity fields is presented for incompressible material. As illustrations, extrusion processes through three basic types of curved dies have been treated: cosine, elliptic, and hyperbolic. Upper-bound theorem is used in obtaining mean extrusion pressures and also in choosing the most suitable deformation pattern for extrusion through square dies. Effects of die geometry, friction, and material properties are discussed.
Skip Nav Destination
Upper Bound Solutions to Plane-Strain Extrusion Problems
P. C. T. Chen
Maggs Research Center, Watervliet Arsenal, Watervliet, N. Y.
- Views Icon Views
- Share Icon Share
- Search Site
Chen, P. C. T. (February 1, 1970). "Upper Bound Solutions to Plane-Strain Extrusion Problems." ASME. J. Eng. Ind. February 1970; 92(1): 158–164. https://doi.org/10.1115/1.3427701
Download citation file: