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SIMULATION OF COLD FLAT ROLLING USING FINITF ELEMENTS MODELING | ||
| Basrah Journal for Engineering Science | ||
| Article 1, Volume 9, Issue 1, 2009, Pages 42-53 PDF (0 K) | ||
| Authors | ||
| A.Kaream F.Hasan; Mujtaba A.Almudhaffar; Asaad K.Sayhood | ||
| Abstract | ||
| This research makes a two-dimensional model for cold flat rolling process using ANSYS program The Contact pair are used between the contact surfaces using the boundary condition of Surface to Surface Contact. . The process of symmetric rolling is tested for two types of materials (aluminum and mild steel) . The rolling force for (1 %) to(25%) reduction of a slab of dimensions of (200*10)mm using (Avitzur) theoretical equations and ANSYS, The radius of the rolls for aluminum are (75)mm and that for mud steel are (300) mm. The numerical results were compared with (Avitzur) theoretical equations . The comparison shows that the values of forces calculated using (Avitzur) theoretical equations are accurate enough up to (5%) reduction, and the numerical results proved its accuracy up to (25%)reduction. The study shows that forces increases as a results of increasing the rolling metal area at entry rate. The angle of the neutral point was also studied in this work and it is found that it decreases with the increasing of reductions rate, due to an increase in the cohesion area on the sliding one within rolling process while the theoretical results failed to calculate the angle of the neutral point correctly. | ||
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