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THE INNER SURFACE TRACTION OF CURVED DIES FOR EXTRUSION AND DRAWING OF SOLID RODS USING FI/SSM | ||
| AL-TAQANI | ||
| Article 1, Volume 23, Issue 4, 2010, Pages 115-129 | ||
| Author | ||
| Kamal Mustafa Kamal Saify | ||
| Abstract | ||
| A successful attempt, to evaluate the internal pressure and shear stresses on the direct extrusion-die surface of arbitrary profile, is presented in this paper, adopting the modified sheared-slab method (SSM), recently developed, which accounts for the transverse shear effect, not included in the classical slab method (CSM). The method employs a finite-integral procedure (FI) for solving of the governing differential equations of stress-equilibrium and applies a convergence pattern test for results check. Two typical profiles of the die surface generators (the truncated conical and radial convex ones) were selected to run the procedure. The entire geometrical and mechanical properties, effecting on the surface traction level values, were maintained in (those like: area reduction, artificial die-angle and friction factor). The problem of finite-element stress analysis and mechanical behavior of the complete die-region, for safety design purpose, can be now achieved reliably as soon as the die internal loading is properly estimated, a matter which this treatise offers to. | ||
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