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Fakulteta za strojništvo, Ljubljana (FSLJ)
  • Tool design optimization in extrusion processes
    Mihelič, Aleš ; Štok, Boris
    Tool design optimization in steady-state extrusion processes, based on the finite element discretization and nonlinear mathematical programming techniques, is considered in this paper. In order to ... perform the optimization the die geometry is adequately parameterized, according to the polynomial representation. By imposing real technological and geometry constraints the optimal tool design is effected by extremizing the actual optimization objectives. In particular, the minimization of the forming energy consumption and the maximization of the possible area reduction are considered. The results, obtained numerically by assuming the Lagrange incremental elastic-plastic finite element formulation in modelling the material flow and the considered optimization approach, are compared to the known theoretical solutions, in cases where such solutions are available. It is demonstrated that the discussed approach is quite effective.
    Vir: Computers & Structures. - ISSN 0045-7949 (68, 1998, 283-293)
    Vrsta gradiva - članek, sestavni del
    Leto - 1998
    Jezik - angleški
    COBISS.SI-ID - 2684443

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