THE ROLE OF FRICTION IN PLANE-STRAIN AND AXISYMMETRIC EXTRUSION PROBLEMS.
Technical rept. 1 Sep 67-30 Apr 68,
RENSSELAER POLYTECHNIC INST TROY N Y DEPT OF MECHANICS
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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. Both Tresca and Mises yield criteria have been used and consideration has been given to friction at the die-material interface. Results are given in analytical form and plotted over a wide range of process variables. Author
- Manufacturing and Industrial Engineering and Control of Production Systems